1

The arc length of a sector of a circle is 12π units, and the corresponding central angle is 150 degrees. Find the diameter of the circle.

A) 11.25 units

B) 28.8 units

C) 11.54 units

D) 11.45 units

2

The circumference of a car wheel is 32.67 inches. What is the diameter of the wheel?

A) 10.93 in

B) 10.40 in

C) 10.3 in

D) 10.54 in

3

A sector of a circle with a central angle of 75 degrees has an arc length of 5.5π inches. Find the radius of the circle.

A) 13.4 in

B) 13.8 in

C) 13.7 in

D) 13.2 in

4

The circumference of a circle is one third of its area. Find the radius of the circle.

A) 6 units

B) 5 units

C) 8 units

D) 7 units

5

The perimeter of a circular coin is 682 meters. Find the circumference of the coin.

A) 682 m

B) 680 m

C) 620 m

D) 628 m

6

A circular swimming pool has an area of 156 square meters. Find the radius of the pool.

A) 7.05 m

B) 6.05 m

C) 4.05 m

D) 2.05 m

7

A circular swimming pool has an area of 450 square meters. Find the radius of the pool.

A) 11.97 m

B) 10.97 m

C) 9.97 m

D) 5.97 m

8

A circular swimming pool has an area of 56 square meters. Find the radius of the pool.

A) 4.44 m

B) 4.22 m

C) 4.3 m

D) 4.56 m

9

An arc length in a circle is 15 cm, and the central angle corresponding to the arc is 180 degrees. Find the radius of the circle.

A) 42.3 cm

B) 45.6 cm

C) 4.77 cm

D) 48.6 cm

10

An arc length in a circle is 25 cm, and the central angle corresponding to the arc is 240 degrees. Find the radius of the circle.

A) 2.7 cm

B) 24.6 cm

C) 256.4 cm

D) 5.97 cm