SOLUTION: Find the perimeter of an isosceles triangle with a base of 10 cm and area of 60 cm^2

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Question 1099661: Find the perimeter of an isosceles triangle with a base of 10 cm and area of 60 cm^2
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Sides 10, y, and y

Let h be height.
%281%2F2%2910%2Ah=60
5h=60
h=12

Isosceles triangle is made of two right triangles each of sides 5, 12, and y.
y%5E2=5%5E2%2B12%5E2
y%5E2=25%2B144
y%5E2=169
y=13

PERIMETER OF ISOSCELES TRIANGLE
10%2B13%2B13
10%2B26
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