Math CentralQuandaries & Queries


Question from Shanon, a parent:

I know that A=1/2bh, but for the life of me cannot figure out my 6th graders math problem.

What is the perimeter of a right triangle whose area = 600 sq. ft.

Can you show me how to solve this?

Thank you!


There is more than one answer. You get bh = 1200. Assuming that b and h are the lengths of legs of the triangle, for every choice of b and h that multiply together to give 1200, you can you Pythagoras' Theorem (b2 + h2 = c2shanon1) to find the length c of the third side. The perimeter is b + h + c. Are you sure there isn't another condition? For example, are the two legs of equal length?


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