1. | Find the area of a square, one of whose diagonals is 3.8 m long ? | |
2. | Find the area of a triangle whose sides measure 13 cm, 14 cm and 15 cm ? | |
3. | The base of a parallelogram is twice its height. If the area of the parallelogram is 72 sq. cm, find its height ? | |
4. | A tank is 25m long 12m wide and 6m deep. The cost of plastering its walls and bottom at 75 paise per sq m is ? | |
5. | Find the area of a right-angled triangle whose base is 12 cm and hypotenuse is 13 cm ? | |
6. | The area of a circle of radius 5 is numerically what percent its circumference ? | |
7. | In two triangles, the ratio of the areas is 4 : 3 and the ratio of their heights is 3 : 4. Find the ratio of their bases ? | |
8. | A sector of 120 degrees, cut out from a circle, has an area of 66/7 sq cm. Find the radius of the circle ? | |
9. | The length of a rectangle is 12 cm. What is the width if the area is 72 cm ? | |