Question

The base of an isosceles triangle is 13 cm, the perimeter of the triangle is 31 cm. what is the length of of either equal side *
8cm
9cm
10cm
12cm​

Answer 1

Answer:

Ans=8 cm is the correct ans

Answer 2

Answer:

9cm

Step-by-step explanation:

In an isosceles triangle adjacent sides have equal measures.

Let the equal sides be x

As there are 2 sides, the sum of the 2 equal sides will be 2x

Perimeter =31 cm

Perimeter = Sum of all sides

31 = 13 + 2x

2x= 31- 13

2x= 18

x = 9

Thus answer would be 9 cm