Question

The base of an isoscelless triangle is 12 cm and its perimeter is 32 cm. then find its area?

Answer 1

let the both equal sides be x. x+x+12= 32 area you can find by heron's formula

Answer 2

Two sides of an isosceles triange are equal. Consider them x.
X+x+12=32 (perimeter)
2x=32-12
2x=20
X=10
Length of two sides=10cm
Area=a/4*root4bsquare-asquare
The final answer 620 cm square.