Problem 1: The perimeter of an isosceles triangle is 32 cm and each of the equal sides is 5/6 times of the base. What is the area (in cm2) of the triangle?

Solution:

2a+b=32

b=12

2a=32-12=20

a=10

Area =

Problem 2: Sides of a parallelogram are in the ratio 5 : 4. Its area is 1000 sq. units. Altitude on the greater side is 20 units. Altitude on the smaller side is?

Solution:

5x*20=4x*h

Height =25