Question

The isosceles triangle has a perimeter of 570m. the third side is 30m shorter than twice the length

Answer 1

sides 1 and 2 are 150 m. Side 3 is 270m

Explanation:

perimeter = 570 m

sides 1 and 2 = x

side 3 = 2x-30

permeter = side+side+side

570=x+x+2x-30

600=4x

x = 150