Quiz about Area and Circumference of a Circle

Question 1

Is this line the radius or diameter?

Accepted Answer

Diameter

Answer

Radius

Question 2

Is this line the radius or diameter?

Accepted Answer

Radius

Answer

Diameter

Question 3

What is the radius of a circle when the diameter is 76 m?

Accepted Answer

38 m

Answer

35 m

Answer

76 m

Answer

152 m

Question 4

If a radius of a circle is 24 m, what is the diameter?

Accepted Answer

48 m

Answer

12 m

Answer

32 m

Answer

25 m

Question 5

Find the area of the circle. $$Use\ 3.14\ for\ \pi.$$

Accepted Answer

254.34 $$in^2$$

Answer

56.52 $$in^2$$

Answer

1017.36 $$in^2$$

Answer

113.04 $$in^2$$

Question 6

A circular swimming pool is 21 feet in diameter.
How many feet around is the pool?

Accepted Answer

65.94 ft

Answer

10.5 ft

Answer

42 ft

Answer

131.95 ft

Question 7

What is the distance around a circle?

Accepted Answer

Circumference

Answer

Area

Answer

Diameter

Answer

Radius

Question 8

Find the circumference of the circle.

Accepted Answer

75.36 yd

Answer

37.68 yd

Answer

18.84 yd

Answer

150.72 yd

Question 9

diameter =

Accepted Answer

radius x 2

Answer

radius x radius

Answer

$$\frac{1}{2}$$ radius

Question 10

radius =

Accepted Answer

$$\frac{1}{2}$$ diameter

Answer

2 x diameter

Answer

diameter x diameter

Question 11

What is the formula for the circumference of a circle?

Accepted Answer

$$C\ =\ 2\pi r$$

Accepted Answer

$$C\ =\ \pi d$$

Answer

$$C\ =\ \pi r^2$$

Answer

$$C\ =\ \pi r^{ }$$

Question 12

A bicycle tire has a diameter of 20 inches. How many inches is one full rotation of the wheel?

Accepted Answer

62.8 in

Answer

31.4 in

Answer

1256 in

Answer

125.6 in

Area and Circumference of a Circle

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