Question

the base of an isosceles triangle is 10 cm and one of its equal side 13 cm .find its area using heron's formula ​

Answer 1

Answer:

Semiperimeter=(13+13+10)/2

36/2=18cm

Area=√s(s-a)(s-b)(s-c)

√18(5)(5)(8)

=√(2)(3)(3)(5)(5)(2)(2)(2)

=2*2*3*5

=60cm²

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