1. Find the area of a square, one of whose diagonals is 3.8 m long ?

7.22

6.22

4.22

3.22

Answer: 7.22

Explanation:


2. Find the area of a triangle whose sides measure 13 cm, 14 cm and 15 cm ?

84

64

44

22

Answer: 84

Explanation:


3. The base of a parallelogram is twice its height. If the area of the parallelogram is 72 sq. cm, find its height ?

8

9

7

6

Answer: 6

Explanation:


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 ?

Rs. 258

Rs. 358

Rs. 558

Rs. 458

Answer: Rs. 558

Explanation:


5. Find the area of a right-angled triangle whose base is 12 cm and hypotenuse is 13 cm ?

30

40

50

60

Answer: 30

Explanation:


6. The area of a circle of radius 5 is numerically what percent its circumference ?

150%

250%

350%

450%

Answer: 250%

Explanation:


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 ?

13:9

14:9

16:9

15:9

Answer: 16:9

Explanation:


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 ?

1 cm

4 cm

2 cm

3 cm

Answer: 3 cm

Explanation:


9. The length of a rectangle is 12 cm. What is the width if the area is 72 cm ?

6 cm

5 cm

3 cm

4 cm

Answer: 6 cm

Explanation: