Find the area of triangle whose base is 9 cm and height of triangle is 12 cm.
A triangle and a parallelogram have the same base and the same area. If the sides of the triangle are 11 cm, 15 cm and 6 cm, and the parallelogram stands on the base 15 cm, find the height of the parallelogram.[4 Marks]
ABCD is a parallelogram whose area is 54 cm2. The area of triangle AEB is _____ cm2.