Question

Find the area of triangle whose two sides are 14cm and 12cm and perimeter 35cm.​

Answer 1

Answer:

Perimeter of the triangle=35cm

Semi perimeter=17.5cm

s-a=17.5-14=3.5

s-b=17.5-12=5.5

s-c=17.5-9=8.5

Area=By Heron's formula

√s(s-a)(s-b)(s-c)

√17.5*3.5* 5.5*8.5=684.49cm^2

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