Question

perimeter of an isosceles triangle is 24 cm . Length of congruent side is 13 cm less than twice the length of base of triangle.Find lenegth of congruent side and base​

Answer 1

let the base be x cm

then, the congruent side = 2x-13cm

and the perimeter is 25cm

A.T.Q

(2x-13)+(2x-13)+x= 24

2x-13+2x-13+x=24

5x= 24+13+13

5x = 50

x = 10

so the length of the congruent side = 2*10-13= 7

the length of the base = 10