AREAS A2

Area of triangle is 60mm². If base is 10mm, find height.

Solution

Area =  1 x base x height

             2

Let height = h

60 =  1 x 10  x h

         2

60 =  1 x 10⁵ x h,     canceling by 2

          2₁

60 =  1 x 5  x  h

60 = 5h

            

¹²60 =  ¹5h

   ₁5       ₁5

h = 12mm

hence height is 12mm

TRY THIS…………………

Area of triangle is 70mm². If base is 20mm, find height.