Question

the base of an isosceles triangle is 12cm and its perimeter is 32cm find its area

Answer 1

perimeter=32 cm
base= 12cm
equal sides=32-12/2
=20/2
=10 cm
Area= s= a+b+c/2
=32/2
=16
root of s(s-a)(s-b)(s-c)
root of 16×6×6×4
=4×6×2
=48 cm^2
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