Question

The base of an isosceles triangle is 4/3 cm. The perimeter of the triangle is 4 ²⁄₁₅cm . What is the length of either of the remaining equal sides?

Answer 1

Let each of equal sides of an isosceles triangle = x cm.

The base of an isosceles triangle = 4/3 cm

Perimeter of a triangle = 4 2⁄15 cm =. (4*15+2)/15=62/15cm

Sum of three sides = 4 2⁄15 =(4*15+2)/15=62/15cm

Accordding to question :

x + 4/3 + x = (60 + 2)/15

2x = 62/15 - 4/3

2x = (62 - 20)/15

2x = 42/15

x = 42/30

x = 7/5

Each of equal sides of an isosceles triangle = x = 7/5 cm.