Unit 3 Circles Study Guide - Part 1 - Math 7

Unit 3 Circles Study Guide - Math 7

Multiple Choice

1. Find the circumference of the circle. Round to the nearest tenth.

• 56.5 feet

• 1017.4 feet

• 28.3 feet

• 79.6 feet

Multiple Choice

2. Find the area of the circle. Round to the nearest tenth.

• 40.8 square inches

• 10.2 square inches

• 132.7 square inches

• 20.4 square inches

Multiple Choice

3. Find the circumference of the circle. Round to the nearest tenth.

• 37.7 miles

• 75.4 miles

• 40.6 miles

• 150.8 miles

Multiple Choice

4. Find the area of the circle. Leave your answer in terms of pi.

• $49\pi$

• $7\pi$

• $14\pi$

• $28\pi$

Multiple Choice

5. Find the circumference of the circle. Leave your answer in terms of pi.

• $3\pi$

• $27\pi$

• $9\pi$

• $18\pi$

Multiple Choice

6. Find the circumference of the circle. Leave your answer in terms of pi.

• $2\pi$

• $8\pi$

• $4\pi$

• $16\pi$

Multiple Choice

7. Decide whether circumference or area would be needed to calculate each question.

A circular tabletop has a radius of 3 feet. A decorative trim is placed along the outside edge of the table. How long is the trim?

• Area

• Circumference

Multiple Choice

8. Solve the following problem.

A circular tabletop has a radius of 3 feet. A decorative trim is placed along the outside edge of the table. How long is the trim?

• 18.8 feet

• 37.7 feet

• 9.4 feet

• 75.4 feet

Multiple Choice

9. Decide whether circumference or area would be needed to calculate each question.

A circular shaped rug has a radius of 2 feet. How much floor space does the rug cover?

• Area

• Circumference

Multiple Choice

10. Solve the following problem.

A circular shaped rug has a radius of 2 feet. How much floor space does the rug cover?

• 6.28 square feet

• 12.6 square feet

• 3.14 square feet

• 18.8 square feet