1. The area of a rectangle of length a and breadth b is
2. The area of a square of side a is
3. The area of a triangle with base b and altitude h is
4. The area of a parallelogram of base b and altitude h is
5. The area of a circle of radius r is
6. 1 cm³ =
7. 1 m³ =
8. 1 mm³ =
9. 1 cm³ =
10. The surface area of a cuboid of length l, breadth b and height h is