Question

find the area of a triangle whose sides are respectively are 9cm 12cm 15cm​

Answer 1

Answer:

formula:-base×height

=9×12

=108

the area of triangle is 108cm

Answer 2

you are sour that find area not perimeter

I can do perimeter because the area of triangle has only base, height

and area of triangle is=1/2×base×height

perimeter of the triangle is=sum of all side

so perimeter of the triangle is=9cm+12cm+15cm

=36cm