Question

find the base of a triangle whose area is 220 cm2 and height is 11cm

Answer 1

We know the formula of area of triangle i.e.
1/2 *base* height
Now,
220 cm^2 = 1/2 * base* 11cm
Base = 220*2/11 = 40 cm.

Answer 2

Hi friend,
we have,
              area of triangle= 220cm²
               height=11cm
Now,     
               base= Area/height×2
                       =220/11×2
                       =40cm