Question 1

A circle has a radius of 5cm. What is the circumference of the circle?

Accepted Answer

31.4cm

Answer

62.8cm

Answer

15.7cm

Answer

25cm

Question 2

A circle has a diameter of 10cm. What is the area of the circle?

Accepted Answer

78.5 square cm

Answer

314 square cm

Answer

62.8 square cm

Answer

31.4 square cm

Question 3

The circumference of a circle is 31.4cm. What is the diameter of the circle?

Accepted Answer

10cm

Answer

15cm

Answer

5cm

Answer

20cm

Question 4

The area of a circle is 78.5 square cm. What is the radius of the circle?

Accepted Answer

5cm

Answer

20cm

Answer

10cm

Answer

15cm

Question 5

The circumference of a circle is 50cm. What is the radius of the circle?

Accepted Answer

7.96cm

Answer

25cm

Answer

16cm

Answer

32cm

Question 6

A circle has a circumference of 28.26cm. What is its area?

Accepted Answer

63.61 square cm

Answer

25 square cm

Answer

100 square cm

Answer

50 square cm

Question 7

A circular garden has a diameter of 10m. What is the total area of the garden in square meters?

Accepted Answer

78.5 square meters

Answer

157 square meters

Answer

314 square meters

Answer

31.4 square meters

Question 8

The area of a circular plot is 314 square meters. What is the circumference of the plot?

Accepted Answer

62.8m

Answer

31.4m

Answer

157m

Answer

314m

Question 9

A circular table has a diameter of 1.5m. What is the circumference of the table?

Accepted Answer

4.71m

Answer

2.36m

Answer

7.07m

Answer

0.75m

Question 10

A circular pizza has a radius of 14 inches. What is the area of the pizza in square inches?

Accepted Answer

616 square inches

Answer

308 square inches

Answer

28 square inches

Answer

884 square inches

Question 11

A circle has a area of 123 square inches. What is the diameter of the circle?

Accepted Answer

12.54 inches

Answer

6.27 inches

Answer

24.77 inches

Answer

246 inches

Question 12

A circle has a radius of 7cm. What is the circumference?

Accepted Answer

44cm

Answer

14cm

Answer

66cm

Answer

22cm

Question 13

A circle has a diameter of 10cm. What is the area of the circle?

Accepted Answer

78.5cm^2

Answer

100cm^2

Answer

314cm^2

Answer

50cm^2

Question 14

The circumference of a circle is 31.4cm. What is the radius of the circle?

Accepted Answer

5cm

Answer

10cm

Answer

15.7cm

Answer

3.14cm

Question 15

A circle has an area of 39.27cm^2 . What is the diameter of this circle?

Accepted Answer

7cm

Answer

14cm

Answer

28cm

Answer

3.5cm

Question 16

The diameter of a circle is 16cm. What is the circumference of the circle?

Accepted Answer

50.24cm

Answer

32cm

Answer

100.48cm

Answer

80cm

Question 17

If a circle's radius is doubled, by what factor does the area increase?

Accepted Answer

4

Answer

8

Answer

2

Answer

3

Question 18

The area of a circular garden is 153.94 square meters. What is the radius of this garden in meters?

Accepted Answer

7m

Answer

22m

Answer

3.5m

Answer

14m

Question 19

If the circumference of a circle is 15cm, what is the diameter of the circle?

Accepted Answer

4.77cm

Answer

30cm

Answer

2.5cm

Answer

7.5cm

Question 20

A circle has an area of 28 square inches. What is the circumference of the circle?

Accepted Answer

18.85 inches

Answer

56 inches

Answer

3.5 inches

Answer

14 inches

Question 21

What is the radius of a circle if the circumference is 62.8 meters?

Accepted Answer

10 meters

Answer

20 meters

Answer

31.4 meters

Answer

5 meters

Question 22

What is the line that passes through the center of a circle, connecting two points on the circle?

Accepted Answer

Diameter

Answer

Chord

Answer

Tangent

Answer

Radius

Question 23

What is the term for a line that touches a circle at exactly one point?

Accepted Answer

Tangent

Answer

Diameter

Answer

Chord

Answer

Radius

Question 24

What is the term for a line segment that has its endpoints on the circle but does not pass through the center?

Accepted Answer

Chord

Answer

Tangent

Answer

Radius

Answer

Diameter

Question 25

What is the term for a line segment with one endpoint at the center of the circle and the other on the circle?

Accepted Answer

Radius

Answer

Tangent

Answer

Chord

Answer

Diameter

Question 26

What is the term for the distance around the edge of a circle?

Accepted Answer

Circumference

Answer

Arc

Answer

Radius

Answer

Diameter

Question 27

What is the term for a curve or segment of a circle?

Accepted Answer

Arc

Answer

Diameter

Answer

Chord

Answer

Tangent

Question 28

What is the term for the point that is equidistant from every point on the circle?

Accepted Answer

Center

Answer

Chord

Answer

Circumference

Answer

Radius

Question 29

What is the term for half of a circle's diameter?

Accepted Answer

Radius

Answer

Sector

Answer

Chord

Answer

Circumference

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