Question

In an isosceles triangle, the unequal side is 22 cm
and perimeter is 144 cm. Find its area.​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

let the equal side be =x

perimeter of ∆= 144

22+x+x=144

2x= 144-22

2x=122

x=122/2=61

semi perimeter=144/2=72

area of∆=√72(72-22)(72-61)(72-61)

= √72×50×11×11

=2×2×3×5×11

=660cm^2