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Worksheets

Circle Word Problems

Total questions: 20

Worksheet time: 20mins

Name
Class
Date
1.

The radius of a birthday cake is 4 inches. Icing will decorate the circumference of the cake. What procedure can be used to find the approximate circumference of the cake? Use 3.14 for π.

a)

Multiply 4 by 3.14.

b)

Multiply 4 by 2, and then multiply the product by 3.14.

c)

Multiply 4 by 4, and then multiply the product by 3.14.

d)

Divide 4 by 2, and then multiply the quotient by 3.14.

2.

The first Ferris wheel was built in 1893 in Chicago. Its diameter was 250 feet. How many feel did the Ferris wheel rotate with one complete turn? (Think the outside measurement of the circle.) Use 3.14 for π.

a)

785 ft

b)

390 ft

c)

912 ft

d)

543 ft

3.

The circumference of a circle is 36.31 meters. What is the approximate length of the radius? Use 3.14 for π.

a)

3 m

b)

4 m

c)

5 m

d)

6 m

4.

The circumference of a circle is 18.41 feet. What is the approximate length of the radius? Use 3.14 for π.

a)

3 ft

b)

5 ft

c)

7 ft

d)

8 ft

5.

A bicycle trail in the shape of a circle has a diameter of 3 miles. Kiersty biked around the trail 4 times. About how far did Kiersty bike? Use 3.14 for π.

a)

38 miles

b)

40 miles

c)

35 miles

d)

33 miles

6.

Mrs VanSciver bought a circular rug. The radius of the rug was 2.5 feet. How does the diameter of the rug compare to the radius? Use 3.14 for π.

a)

The diameter of the rug is twice the radius.

b)

The radius is twice the circumference.

c)

The diameter of the rug is half the radius.

d)

The diameter is twice the circumference.

7.

Mr. Blain designed a circular walkway in front of his house. The diameter of the walkway is about 6 feet long. How many square feet of bricks will he need to buy? Use 3.14 for π.

a)

18.84 square feet

b)

113.04 square feet

c)

9.42 square feet

d)

28.26 square feet

8.

Alejandra is making a tablecloth. Her table has a 7 foot diameter. How many square feet of material does she need to use? Use 3.14 for π.

a)

10.9 square feet

b)

153.9 square feet

c)

38.5 square feet

d)

21.9 square feet

9.

What is the approximate area of a circle with a diameter of 6.2 inches?

a)

30.19 square inches

b)

120.76 square inches

c)

19.48 square inches

d)

9.74 square inches

10.

Jalen is making a circular pizza with a circumference of 44 inches. What is the approximate radius of Jalen's pizza. Use 3.14 for pi.

a)

14 inches

b)

7 inches

c)

22 inches

d)

88 inches

11.

Paige wants to sew lace around the edge of a round tablecloth. The table cloth has a diameter of 6 feet. About how much lace will Paige need?

a)

18.85 feet

b)

113.10 feet

c)

9.42 feet

d)

28.27 feet

12.

A round table has a radius of 15 in. A round tablecloth hangs 2 in. over the edge of the entire table. What is the approximate area of the tablecloth?

a)

107 in2

b)

707 in2

c)

908 in2

d)

1,134 in2

13.

The diameter of a circle on a coordinate plane has endpoints at (2,3) and (2,8). What is the approximate are of the circle?

a)

16 square units

b)

20 square units

c)

25 square units

d)

79 square units

14.

A circle has a radius of 3.75 meters. What is the approximate area of the circle?

a)

12 square meters

b)

14 square meters

c)

24 square meters

d)

44 square meters

15.

What is the approximate length of the radius of a circle with a circumference of 63 inches?

a)

4 in

b)

8 in

c)

10 in

d)

20 in

16.

What is the area of a circle that has a diameter of 6 cm?

a)

38 cm2

b)

36 cm2

c)

28 cm2

d)

19 cm2

17.

The radius of the wheel is 12 inches. What is the approximate circumference of the wheel?

a)

19 inches

b)

24 inches

c)

38 inches

d)

75 inches

18.

Mario ordered a pizza that had a diameter of 14 inches. What is the approximate area of the pizza?

a)

22 in.2

b)

44 in.2

c)

154 in.2

d)

616 in.2

19.

What is the approximate circumference of a circle with a radius of 5 in.?

a)

16 in

b)

20 in

c)

31 in

d)

79 in

20.

Hannah drew a circle with a radius of 30 cm. Jonas drew a circle with a radius of 20 cm. What is the approximate difference in the areas of their circles?

a)

2,826 cm2

b)

1,570 cm2

c)

1,256 cm2

d)

314 cm2