Question

Find the area of a triangle two sides of which are 18 cm and 12 cm and the perimeter is 44

Answer 1

Find the base of the triangle:

44=12+18+x

44=30+x

44-30=x

14 is the base.

area of a triangle = 1/2×base × height

= 1/2×14×18

=252/2

=126sq cm.

Answer 2

Base of the triangle

44=12+18+x

44=30+x

44-30=x

x=14 is the base

Area of triangle = 1/2 x base x height

1/2 x 14 x 18

252/2 = 126 sq cm.