Asked by joi

jafar has an isosceles triangle with an area of 20.25cm squared, what is the length of the side facing the right angle?
Answered by drwls
The only isosceles truiangle that has a right angle is a 45-45-90 degree triangle. It is half a square of 40.5 cm^2 area, divided along a diagonal.
The equal side lengths would be sqrt40.5 = 6.364 cm
The hypotenuse would be that times the square root of 2, or 9.00 cm
Answered by joi
thNKS!
Answered by drwls
The answer is exactly nine, since
sqrt(40.5)*sqrt(2) = sqrt(81)

I should have seen that.

You're welcome!
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