Question

find the area of a triangle whose sides are 12 CM 9.6 cm and 7.2 CM

Answer 1

Answer:

Consider a=12 cm , b=9.6 cm and c=7.2 cm

We know that perimeter

S = Semi perimeter = (a+b+c)/2

Substituting the values

(12+9.6+7.2)/2

=28.8/2

=14.4 cm