Question

1. The sides of a triangle are 12 cm, 16cm and 20 cm. Find its area?​

Answer 1

Answer:

A=s(s﹣a)(s﹣b)(s﹣c)

s=a+b+c

2

Solving forA

A=1

4﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4=1

4·﹣124+2·(12·16)2+2·(12·20)2﹣164+2·(16·20)2﹣204=96cm²

Answer 2

Hope you will understand the answer