Question

In an isosceles triangle the unequal side is 22 cm and perimeter is 144 cm find its area

Answer 1

Answer:

600 cm²

Step-by-step explanation:

perimeter = 144 cm

length of unequal side = 22 cm

length if equal sides = 144 - 22

                                  =122

each equal side = 61 cm

area = √s(s-a)(s-b)(s-c)

s = perimeter / 2

  = 72

Δ = √72(72-61)(72-61)(72-22)

  =√72×10×10×50

   =√2⁶×3²×5⁴                                           [ after simplification ]

Δ=2³×3×5²

  =24×25

  =600 cm²

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Answer 2

hope it's helpful to you