Maths question- area of a quadrilateral
27-09-2006, 02:25 PM
#41
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Originally Posted by chip-3door
Originally Posted by Shings
OI
Calm the funk down...
But seriously thanks for both of your help.
I'll let you know how I get on when its marked.
Jake
Calm the funk down...
But seriously thanks for both of your help.
I'll let you know how I get on when its marked.
Jake
But you do need to know the angles as a nearly square one will have a larger area than an almost totally flattened shape with the same size sides.
Drawing to scale seems to be the best route now... you can then work out angles.
27-09-2006, 02:27 PM
#43
Originally Posted by Adrenaline Junkie
Originally Posted by chip-3door
Originally Posted by Shings
OI
Calm the funk down...
But seriously thanks for both of your help.
I'll let you know how I get on when its marked.
Jake
Calm the funk down...
But seriously thanks for both of your help.
I'll let you know how I get on when its marked.
Jake
But you do need to know the angles as a nearly square one will have a larger area than an almost totally flattened shape with the same size sides.
Drawing to scale seems to be the best route now... you can then work out angles.
To draw to scale you need to know the angles
27-09-2006, 02:34 PM
#45
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Originally Posted by chip-3door
Originally Posted by Adrenaline Junkie
Originally Posted by chip-3door
Originally Posted by Shings
OI
Calm the funk down...
But seriously thanks for both of your help.
I'll let you know how I get on when its marked.
Jake
Calm the funk down...
But seriously thanks for both of your help.
I'll let you know how I get on when its marked.
Jake
But you do need to know the angles as a nearly square one will have a larger area than an almost totally flattened shape with the same size sides.
Drawing to scale seems to be the best route now... you can then work out angles.
To draw to scale you need to know the angles
I now feel stupid.
27-09-2006, 02:35 PM
#47
Originally Posted by Shings
Originally Posted by dojj
totalty unrelated question here, how come you've made it touni and don't know how to wkr out simple maths problems geezer?
not that i'm calling you thick or anything mind
not that i'm calling you thick or anything mind
Pmsl this isn't exactly a simple maths problem is it.. it sounds simple but as I wanted to try and be 100% accurate as already pointed out I actually dont have all the information and to get that information will require doing a scale drawing- I dont have the time and there is no requirement for it in the piece of work.. also the task is quite precise in what it wants and I would need to include my scale drawing in my submitted work-
As to how I got to Uni..
Over the age of 21 you are classed as a mature student and require no formal qualifications..
I am 25..
27-09-2006, 02:36 PM
#49
Originally Posted by Shings
Originally Posted by chip-3door
Originally Posted by Adrenaline Junkie
Originally Posted by chip-3door
Originally Posted by Shings
OI
Calm the funk down...
But seriously thanks for both of your help.
I'll let you know how I get on when its marked.
Jake
Calm the funk down...
But seriously thanks for both of your help.
I'll let you know how I get on when its marked.
Jake
But you do need to know the angles as a nearly square one will have a larger area than an almost totally flattened shape with the same size sides.
Drawing to scale seems to be the best route now... you can then work out angles.
To draw to scale you need to know the angles
Jake
You cannot work the angles out if you have access to:
steven hawkings
1 million scale drawings
elventy seven million kray computers
not unless you have the angles on one of those drawings
27-09-2006, 02:36 PM
#50
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Originally Posted by Shings
Originally Posted by chip-3door
Originally Posted by Adrenaline Junkie
Originally Posted by chip-3door
Originally Posted by Shings
OI
Calm the funk down...
But seriously thanks for both of your help.
I'll let you know how I get on when its marked.
Jake
Calm the funk down...
But seriously thanks for both of your help.
I'll let you know how I get on when its marked.
Jake
But you do need to know the angles as a nearly square one will have a larger area than an almost totally flattened shape with the same size sides.
Drawing to scale seems to be the best route now... you can then work out angles.
To draw to scale you need to know the angles
Jake
27-09-2006, 02:37 PM
#51
Originally Posted by Adrenaline Junkie
And i got into Uni because i have 10 GCSE's, a BTEC National Award and experience in the trade. 
27-09-2006, 02:40 PM
#53
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Originally Posted by chip-3door
Originally Posted by Adrenaline Junkie
And i got into Uni because i have 10 GCSE's, a BTEC National Award and experience in the trade.
Maths was never my strongest point.
But i don't agree with you thinking they're too easy.
27-09-2006, 02:41 PM
#56
Originally Posted by Shings
So just to clarify..... WE NEED SOME ANGLES
OR some other measurements
You could do it if you had a distance between the opposing corners, as from that you could use trig to work out the angles.
But with just the four sides, you cant do it.
27-09-2006, 02:44 PM
#57
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As stated earlier in this thread.
U can work it out by taking one length of the sides & drawing it at 180 degrees. Then drawing circles with a radius of the adjacent sides off of each end (the end being the centrepoint). Were these circles cross u draw the circle for the radius of the remainder length. Simply join the points & u have the area plotted out. If ur in cad program U can then call up the area - if not ur fooked.
Do this at work all the time to get areas for skew span bridges.
Good nite, god bless - last one out, turn all the lights off
U can work it out by taking one length of the sides & drawing it at 180 degrees. Then drawing circles with a radius of the adjacent sides off of each end (the end being the centrepoint). Were these circles cross u draw the circle for the radius of the remainder length. Simply join the points & u have the area plotted out. If ur in cad program U can then call up the area - if not ur fooked.
Do this at work all the time to get areas for skew span bridges.
Good nite, god bless - last one out, turn all the lights off
27-09-2006, 02:45 PM
#59
Originally Posted by Drapoon
As stated earlier in this thread.
U can work it out by taking one length of the sides & drawing it at 180 degrees. Then drawing circles with a radius of the adjacent sides off of each end (the end being the centrepoint). Were these circles cross u draw the circle for the radius of the remainder length. Simply join the points & u have the area plotted out. If ur in cad program U can then call up the area - if not ur fooked.
Do this at work all the time to get areas for skew span bridges.
Good nite, god bless - last one out, turn all the lights off
U can work it out by taking one length of the sides & drawing it at 180 degrees. Then drawing circles with a radius of the adjacent sides off of each end (the end being the centrepoint). Were these circles cross u draw the circle for the radius of the remainder length. Simply join the points & u have the area plotted out. If ur in cad program U can then call up the area - if not ur fooked.
Do this at work all the time to get areas for skew span bridges.
Good nite, god bless - last one out, turn all the lights off
you can only do that if you have an accurate scale drawing
you cant do it from just knowing the length of the 4 sides.
27-09-2006, 02:46 PM
#60
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Originally Posted by Drapoon
As stated earlier in this thread.
U can work it out by taking one length of the sides & drawing it at 180 degrees. Then drawing circles with a radius of the adjacent sides off of each end (the end being the centrepoint). Were these circles cross u draw the circle for the radius of the remainder length. Simply join the points & u have the area plotted out. If ur in cad program U can then call up the area - if not ur fooked.
Do this at work all the time to get areas for skew span bridges.
Good nite, god bless - last one out, turn all the lights off
U can work it out by taking one length of the sides & drawing it at 180 degrees. Then drawing circles with a radius of the adjacent sides off of each end (the end being the centrepoint). Were these circles cross u draw the circle for the radius of the remainder length. Simply join the points & u have the area plotted out. If ur in cad program U can then call up the area - if not ur fooked.
Do this at work all the time to get areas for skew span bridges.
Good nite, god bless - last one out, turn all the lights off
Still not convinced it'll work though...
27-09-2006, 02:47 PM
#61
Originally Posted by Shings
Originally Posted by Adrenaline Junkie
Just a thought, where did you get your dimensions from in the first place? 
As you can imagine- the people on my course are not exactly as dedicated to it as I am ... because they're all 19 so all they wanted to do was go to the pub..
I spoke to one lad earlier - who for the benefit of ease has just made his own figures up which are roughly about right.
27-09-2006, 02:47 PM
#62
Originally Posted by Adrenaline Junkie
Originally Posted by Drapoon
As stated earlier in this thread.
U can work it out by taking one length of the sides & drawing it at 180 degrees. Then drawing circles with a radius of the adjacent sides off of each end (the end being the centrepoint). Were these circles cross u draw the circle for the radius of the remainder length. Simply join the points & u have the area plotted out. If ur in cad program U can then call up the area - if not ur fooked.
Do this at work all the time to get areas for skew span bridges.
Good nite, god bless - last one out, turn all the lights off
U can work it out by taking one length of the sides & drawing it at 180 degrees. Then drawing circles with a radius of the adjacent sides off of each end (the end being the centrepoint). Were these circles cross u draw the circle for the radius of the remainder length. Simply join the points & u have the area plotted out. If ur in cad program U can then call up the area - if not ur fooked.
Do this at work all the time to get areas for skew span bridges.
Good nite, god bless - last one out, turn all the lights off
Still not convinced it'll work though...
27-09-2006, 02:48 PM
#63
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Originally Posted by chip-3door
Originally Posted by Shings
Originally Posted by Adrenaline Junkie
Just a thought, where did you get your dimensions from in the first place?
As you can imagine- the people on my course are not exactly as dedicated to it as I am ... because they're all 19 so all they wanted to do was go to the pub..
I spoke to one lad earlier - who for the benefit of ease has just made his own figures up which are roughly about right.
27-09-2006, 02:50 PM
#66
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Originally Posted by chip-3door
Originally Posted by Adrenaline Junkie
Originally Posted by Drapoon
As stated earlier in this thread.
U can work it out by taking one length of the sides & drawing it at 180 degrees. Then drawing circles with a radius of the adjacent sides off of each end (the end being the centrepoint). Were these circles cross u draw the circle for the radius of the remainder length. Simply join the points & u have the area plotted out. If ur in cad program U can then call up the area - if not ur fooked.
Do this at work all the time to get areas for skew span bridges.
Good nite, god bless - last one out, turn all the lights off
U can work it out by taking one length of the sides & drawing it at 180 degrees. Then drawing circles with a radius of the adjacent sides off of each end (the end being the centrepoint). Were these circles cross u draw the circle for the radius of the remainder length. Simply join the points & u have the area plotted out. If ur in cad program U can then call up the area - if not ur fooked.
Do this at work all the time to get areas for skew span bridges.
Good nite, god bless - last one out, turn all the lights off
Still not convinced it'll work though...
27-09-2006, 02:53 PM
#69
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Originally Posted by Shings
I'm sure they aint arsed about acuracy.. I just like to be as accurate as possible... its why I am doing QS-
Incedently- I have been out of education for 8 years and this is only week 2 of a 3 year course
Incedently- I have been out of education for 8 years and this is only week 2 of a 3 year course
27-09-2006, 02:57 PM
#70
Originally Posted by Adrenaline Junkie
Which defeats the object of this exercise
Indeed which makes drapoon's comments TOTALLY useless.
But i didnt want to abuse a newbie cause i get told off for that, so i didnt point out he was being a......
27-09-2006, 03:00 PM
#72
Originally Posted by Drapoon
.... but u dont need any angles!
I would love to see you do that one
27-09-2006, 03:02 PM
#73
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Originally Posted by Shings
OK got a new one for you
Calculate the diameter of a building with a circular plan of the same area as your plan measured building.
So my plan measured buildings area is 1132.70 m2
So what does that mean- I interpret that as draw a circle to the same area of the building and find out the diameter.
Jake
Calculate the diameter of a building with a circular plan of the same area as your plan measured building.
So my plan measured buildings area is 1132.70 m2
So what does that mean- I interpret that as draw a circle to the same area of the building and find out the diameter.
Jake
diameter: 37.976
perimeter: 119.306
area: 1132.7
27-09-2006, 03:18 PM
#78
Originally Posted by Shings
Originally Posted by chip-3door
Its easy mate, just press the one that has a drawing on it of the number you want
Ok then....
How do I work out the perimeter from the area.
The radius from the perimeter??
and I know the diameter is 2xR (r being radius)
Perimeter = 2 * Pi * R
(same as Pi * D )
Radius = Perimeter / 2 / Pi
