Question

Find the area of a triangle whose sides are 9 cm, 5 cm and 5 cm. with proper steps plz :3

Answer 1

Answer:

to find the area of a triangle having measures of its three sides given.We use Heroins Formula

√s(s-a)(s-b)(s-c), where s is semi perimeter

now,

s=(a+b+c)/2

=(9+5+5)/2

=19/2=9.5cm

now,

Area=√9.5(9.5-9)(9.5-5)(9.5-5)

=√9.5×0.5×÷4.5×4.5

=√96.1875

9.80 cm..ans