The altitude of an isosceles triangle is 4 cm and its base is 2 cm more than its height. The area of the triangle is :

1. 24 cm²

2. 12 cm²

3. 16 cm²

4. 8 cm²

Two sides of a triangle are 6 cm and 8 cm. If the height of the triangle corresponding to 6 cm side is 4 cm; find :

(i) area of the triangle

(ii) height of the triangle corresponding to 8 cm side.

The sides of a triangle are 16 cm, 12 cm and 20 cm. Find:

(i) area of the triangle

(ii) height of the triangle corresponding to the largest side

(iii) height of the triangle corresponding to the smallest side.