Question

Find the area of an isosceles triangle with perimeter 36 cmand base 16 cm.`​

Answer 1

perimeter of an isosceles triangle = 36

base of an isosceles triangle = 16

let, another two sides be x

x + x + 16 = 36

2x + 16 = 36

2x = 36 - 16

2x = 20

x = 20 / 2

x = 10