Question 1

What is the formula for the circumference of a circle when the diameter is known?

Accepted Answer

C = \pi 	imes d

Answer

C = \pi 	imes d

Answer

C = \pi 	imes d

Answer

C = \pi 	imes d

Question 2

What is the area of a circle with a radius of 3 units?

Accepted Answer

C = \pi 	imes d

Answer

C = \pi 	imes d

Answer

C = \pi 	imes d

Answer

C = \pi 	imes d

Question 3

If the radius of a circle is 5 units, what is the circumference?

Accepted Answer

C = \pi 	imes d

Answer

C = \pi 	imes d

Answer

C = \pi 	imes d

Answer

C = \pi 	imes d

Question 4

A circle has a radius of 4. What is the area of the circle?

Accepted Answer

C = \pi 	imes d

Answer

C = \pi 	imes d

Answer

C = \pi 	imes d

Answer

C = \pi 	imes d

Question 5

What is the circumference of a circle with a diameter of 10 units?

Accepted Answer

C = \pi 	imes d

Answer

C = \pi 	imes d

Answer

C = \pi 	imes d

Answer

C = \pi 	imes d

Question 6

What is the diameter of a circle with a radius of 7 units?

Accepted Answer

14 units

Answer

28 units

Answer

21 units

Answer

7 units

Question 7

If a circle has a diameter of 8 units, what is the radius?

Accepted Answer

4 units

Answer

2 units

Answer

8 units

Answer

16 units

Question 8

If a circle has a circumference of approximately 31.42 units, what is the diameter?

Accepted Answer

10 units

Answer

20 units

Answer

15.71 units

Answer

5 units

Question 9

What is the radius of a circle with an area of approximately 28.26 square units?

Accepted Answer

3 units

Answer

6 units

Answer

4 units

Answer

5 units

Question 10

If the radius of a circle is doubled, how does the area change?

Accepted Answer

The area becomes four times larger

Answer

The area doubles

Answer

The area becomes eight times larger

Answer

The area stays the same

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