Question

An Isosceles triangle and a square have the same perimeter. Find the side lengths of the triangle.

triangle base: 3x

triangle height: 2x+1

square length: 4

Answer: 5, 5, 6

How you get this answer?

Answer 1

Well maybe if using this example equation might help you, the picture is below the equation example!

Since an isosceles triangle has two equal sides, its perimeter can be calculated if the base and the equal sides are known. The formula to calculate the perimeter of an isosceles triangle is P = 2a + b where 'a' is the length of the two equal sides and 'b' is the base of the triangle.