Question

what is the formula to find sides of isosceles triangle when I know the perimeter and base?
​

Answer 1

Step-by-step explanation:

How can I determine the length of the sides b, and the altitude h of an isosceles triangle given its area A=24cm2 and its perimeter P=16cm?

Let a be the length of one side and let b be the length of the other two sides, and let h be the altitude.

By Pythagorean Theorem we have that

(12a)2+h2=b2

We also have that a+2b=16 and 12ah=24.

Solve this system of 3 equations