AREAS A5

Area of triangle is 150cm². Find its base if the height is 50cm.

Solution

150  =  1 x base x height

             2

Let base = b

150 =  1 x b  x 50

           2

150 =  1 x b x 50²⁵,     canceling by 2

           2₁

150 =  1 x b  x  25

150 = 25b

            

⁶150  =  ¹25b

₁25         ₁25

b = 6cm

hence base is 6cm

TRY THIS..............

Area of triangle is 180cm². Find its base if the height is 60cm.