SOLUTION: An isosceles triangle has an area of 200 square units, and the altitude to the base measures 10 units. What is the perimeter of the triangle?

Question 38581: An isosceles triangle has an area of 200 square units, and the altitude to the base measures 10 units. What is the perimeter of the triangle?
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!

The isosceles triangle is actually TWO right triangles, where the base of the isosceles triangle is split in half. Therefore the base of the right triangle is 5 units, and the height is 40 units. Let c = the length of the hypotenuse of the right triangle, which is also one of the equal sides of the isosceles triangles.

Perimeter = sum of the THREE external sides, where
Base = 10 units
Each equal side =

Perimter = Base + 2 equal sides

R^2 at SCC
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