A triangle and a parallelogram have the same base and the same area. If the sides of the triangle are 26 cm, 28 cm and 30 cm, and the parallelogram stands on the base 28 cm, find the height of the parallelogram.
Parallelogram ABCD and are on the same base AB.
Let height of parallelogram ABCD = h cm
Semi-perimeter of cm
Using Heron's formula, Area of
It is given that area of parallelogram ABCD is equal to area of .