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#1 Re: Help Me ! » Find an Area from just the Perimeter (Geometry) » 2010-04-07 03:16:18
Thank you very much for your reply and also your impressive solution...
Im still trying to get my head around the method, that you have used.
The number '16' in your end formula, how did that appear?
Another question/answer example:
A peremiter of a rectangle is 48cm. What could be the area of the rectangle. 258, 145, 135, 150, 172
The Answer for the area would be 135cm squared.
>>> I've tried using the method/formula and the answer I get is different.<<<<
My working out, using your formula (incorrectly I imagine!)
p = 48
A = (48 Squared) / 16
A = 144
#2 Help Me ! » Find an Area from just the Perimeter (Geometry) » 2010-04-07 00:50:41
- Numan
- Replies: 6
I've come across this question. And I cant work out the logic behind it, as for a rectangle with a certain perimeter there can be a number of possible areas for it. How would you work out all the areas for a given perimeter? Would it be factors?
Rectangle has a perimeter of 34cm. Select the answer that could be the area of the rectangle.
a) 74cm2 b) 84cm2 c) 70cm2 d) 76cm2
The answer is 70cm squared. But how is it worked out! 
Help pleaaaaaaaaaaaaaaaaaase!
Thank you.
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