Question

The base of an isosceles triangle is one third of it's equal sides .if the perimeter is 42cm find each side of triangle​

Answer 1

Answer:

your answer is eighteen

Answer 2

Answer:

18

Step-by-step explanation:

Let the equal side is = X

base is = (1/3)x

perimeter is = 42= a + b + c

a= x

b= x

c= (1/3)x

x + x + (1/3)x = 42

(3x + 3x + x) / 3 = 42

7x = 42*3

7x = 126

x = 126/7

x = 18

x/3 = 18/3 = 6

To verify

Perimeter = 18+18+6 = 42