SOLUTION: Would like to know how to figure the square footage of a triangle 47 by 47 by 18, this is on a constuction site, so do not know the height. Would like to know if there is a formula

Question 595453: Would like to know how to figure the square footage of a triangle 47 by 47 by 18, this is on a constuction site, so do not know the height. Would like to know if there is a formula to use when the height is not known, need to figure out the square feet in the triangle shape. Thank you
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
This triangle has two equal sides, an isosceles triangle, with a base of 18, can be made up of two right triangles. Find the height using pythag
h =
h = 46.13
:
Find the area:
A = .5*b*h
A = .5*18*46.13
A ~ 415 sq/units
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