Question

The area of a circle of diameter d is

(a) πd2

(b) 2πd2

(c) 1/4 πd2

(d) 2πd

Question 2. 1 cm2 =

(a) 10 mm2

(b) 100 mm2

(c) 1000 mm2

(d) 10000 mm2

Question 3. 1 m2 =

(a) 10 cm2

(b) 100 cm2

(c) 1000 cm2

(d) 10000 cm2Question 4. 1 hectare =

(a) 10 m2

(b) 100 m2

(c) 1000 m2

(d) 10000 m2

Question 5. 1 are =

(a) 10 m2

(b) 100 m2

(c) 1000 m2

(d) 10000 m2

Question 6. The area of a square plot is 1600 m2

. The side of the plot is

(a) 40 m

(b) 80 m

(c) 120 m

(d) 160 m

Question 7. The area of a square is 121 m2

. Its side is

(a) 11 m

(b) 21 m

(c) 31 m

(d) 41 m

Question 8. The area of a square is 625 m2

. Find its side

(a) 25 m

(b) 50 m

(c) 125 m

(d) 5 m

Question 9. The area of a rectangular field is 250 m2

. If the breadth of the field is 10 m, find its

length.

(a) 25 m

(b) 50 m

(c) 100 m

(d) 125 m

Question 10. The perimeter of a rectangle is 30 m. Its length is 10 m. Its breadth is

(a) 5 m

(b) 10 m

(c) 15 m

(d) 3 m​

Answer 1

Answer:

Q)The area of a circle of diameter d is

(a) πd2

(b) 2πd2

(c) 1/4 πd2

(d) 2πd

Answer :-

Diameter of circle :- d

so, radius = d/2.

hence , Area = πr²

so, Area = πd²/4

so, option (C). is right option.

Question 2.). 1 cm2 =

(a) 10 mm2

(b) 100 mm2

(c) 1000 mm2

(d) 10000 mm2

Answer :- 1cm² = 100 mm²

so, (B) option is right answer.

Question 3. 1 m2 =

Question 3. 1 m2 =(a) 10 cm2

Question 3. 1 m2 =(a) 10 cm2(b) 100 cm2

Question 3. 1 m2 =(a) 10 cm2(b) 100 cm2(c) 1000 cm2

Question 3. 1 m2 =(a) 10 cm2(b) 100 cm2(c) 1000 cm2(d) 10000 cm2

Answer :- 1m² = 10000cm²

so , option (D) is right answer.

4. 1 hectare =

4. 1 hectare =(a) 10 m2

4. 1 hectare =(a) 10 m2(b) 100 m2

4. 1 hectare =(a) 10 m2(b) 100 m2(c) 1000 m2

4. 1 hectare =(a) 10 m2(b) 100 m2(c) 1000 m2(d) 10000 m2

ANSWER :- 1 hactare = 10000m²

so, option (D) is right answer.

Answer 2

The area of a circle of diameter d is

(a) πd2

(b) 2πd2

(c) 1/4 πd2

(d) 2πd