Question

Find the area of triangle when three sides of its 10cm 12cm and 8cm

Answer 1

Answer:

Perimeter of triangle = 10+12+8

=30

Semi perimeter (s)=p/2

=30/2

=15

Area of triangle = under root s(s-a)(s-b)(s-c)

=under root 15(15-10)(15-12)(15-8)

=under root 15*5*3*7

=under root 3*5*5*3*7

=15under root 7 cm^2

Hope it helps!!

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