Question

The sides of a triangle are 9 cm, 8 cm and 7 cm find the area of the triangle (with steps pls)​

Answer 1

Answer:

A=s(s﹣a)(s﹣b)(s﹣c)

s=a+b+c/2

Solving for A

A=1/4✓-a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4=1

1/4✓-94+2·(9·8)2+2·(9·7)2-8⁴+2·(8·7)2-7⁴

=26.83282cm²