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Grade 7 Math · Circumference and Area of Circles

Grade 7 Circumference and Area of Circles Practice Test

Build Grade 7 Math skills with five 10-question practice tests on circumference, area, radius, diameter, pi, scale changes, and real-world circle problems.

Circumference and Area of Circles Practice Tests

These Grade 7 Math practice tests help students calculate circle circumference and area. Students work with radius, diameter, exact answers using π, decimal approximations, scale changes, and real-world circle measurements.

Skills covered

  • Using C = 2πr and C = πd for circumference
  • Using A = πr² for area
  • Converting between radius and diameter
  • Using exact π expressions and decimal approximations
  • Finding missing radius or diameter from circumference or area
  • Analyzing how circumference and area change when radius changes

How to use these practice tests

Use the radius in the area formula and the diameter in the direct circumference formula. If the diameter is given, divide by 2 before finding area. Follow the problem’s instruction about using π exactly or approximating with 3.14.

For more Grade 7 Math practice, return to the Grade 7 Math category.

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Grade 7 Circumference and Area of Circles Practice Tests

A 10-question Grade 7 Math practice test on circle circumference, area, radius, diameter, pi, scale changes, and real-world circle problems.

Identify the radius or diameter, choose the circumference or area formula, use the requested value of pi, and label the units correctly.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

Find the circumference of a circle with radius 55 using π≈3.14\pi\approx3.14.

Please select an answer first.

Correct answer: A

The correct answer is 31.431.4.

  1. Identify the radius or diameter: Determine whether the problem gives the radius, diameter, circumference, or area.
  2. Apply the circle formula: Use C=2πr=2⋅3.14⋅5=31.4C=2\pi r=2\cdot3.14\cdot5=31.4.
  3. Check the result: Confirm the radius-diameter relationship and use the requested value of pi or rounding instruction.

Use C=2πr=2⋅3.14⋅5=31.4C=2\pi r=2\cdot3.14\cdot5=31.4.

2. QuestionMultiple choice

Find the circumference of a circle with diameter 1010 using π≈3.14\pi\approx3.14.

Please select an answer first.

Correct answer: B

The correct answer is 31.431.4.

  1. Identify the radius or diameter: Determine whether the problem gives the radius, diameter, circumference, or area.
  2. Apply the circle formula: Use C=πd=3.14⋅10=31.4C=\pi d=3.14\cdot10=31.4.
  3. Check the result: Confirm the radius-diameter relationship and use the requested value of pi or rounding instruction.

Use C=πd=3.14⋅10=31.4C=\pi d=3.14\cdot10=31.4.

3. QuestionMultiple choice

Find the area of a circle with radius 44 using π≈3.14\pi\approx3.14.

Please select an answer first.

Correct answer: C

The correct answer is 50.2450.24.

  1. Identify the radius or diameter: Determine whether the problem gives the radius, diameter, circumference, or area.
  2. Apply the circle formula: Use A=πr2=3.14⋅42=3.14⋅16=50.24A=\pi r^2=3.14\cdot4^2=3.14\cdot16=50.24.
  3. Check the result: Confirm the radius-diameter relationship and use the requested value of pi or rounding instruction.

Use A=πr2=3.14⋅42=3.14⋅16=50.24A=\pi r^2=3.14\cdot4^2=3.14\cdot16=50.24.

4. QuestionMultiple choice

Find the circumference of a circle with diameter 1414 using π≈3.14\pi\approx3.14.

Please select an answer first.

Correct answer: D

The correct answer is 43.9643.96.

  1. Identify the radius or diameter: Determine whether the problem gives the radius, diameter, circumference, or area.
  2. Apply the circle formula: Use C=πd=3.14⋅14=43.96C=\pi d=3.14\cdot14=43.96.
  3. Check the result: Confirm the radius-diameter relationship and use the requested value of pi or rounding instruction.

Use C=πd=3.14⋅14=43.96C=\pi d=3.14\cdot14=43.96.

5. QuestionMultiple choice

Find the area of a circle with radius 33 using π≈3.14\pi\approx3.14.

Please select an answer first.

Correct answer: A

The correct answer is 28.2628.26.

  1. Identify the radius or diameter: Determine whether the problem gives the radius, diameter, circumference, or area.
  2. Apply the circle formula: Use A=πr2=3.14⋅32=28.26A=\pi r^2=3.14\cdot3^2=28.26.
  3. Check the result: Confirm the radius-diameter relationship and use the requested value of pi or rounding instruction.

Use A=πr2=3.14⋅32=28.26A=\pi r^2=3.14\cdot3^2=28.26.

6. QuestionMultiple choice

Find the area of a circle with diameter 2020 using π≈3.14\pi\approx3.14.

Please select an answer first.

Correct answer: B

The correct answer is 314314.

  1. Identify the radius or diameter: Determine whether the problem gives the radius, diameter, circumference, or area.
  2. Apply the circle formula: The radius is 10. Then A=3.14⋅102=314A=3.14\cdot10^2=314.
  3. Check the result: Confirm the radius-diameter relationship and use the requested value of pi or rounding instruction.

The radius is 10. Then A=3.14⋅102=314A=3.14\cdot10^2=314.

7. QuestionMultiple choice

Find the circumference of a circle with radius 88 using π≈3.14\pi\approx3.14.

Please select an answer first.

Correct answer: C

The correct answer is 50.2450.24.

  1. Identify the radius or diameter: Determine whether the problem gives the radius, diameter, circumference, or area.
  2. Apply the circle formula: Use C=2πr=2⋅3.14⋅8=50.24C=2\pi r=2\cdot3.14\cdot8=50.24.
  3. Check the result: Confirm the radius-diameter relationship and use the requested value of pi or rounding instruction.

Use C=2πr=2⋅3.14⋅8=50.24C=2\pi r=2\cdot3.14\cdot8=50.24.

8. QuestionMultiple choice

Find the area of a circle with diameter 1212 using π≈3.14\pi\approx3.14.

Please select an answer first.

Correct answer: D

The correct answer is 113.04113.04.

  1. Identify the radius or diameter: Determine whether the problem gives the radius, diameter, circumference, or area.
  2. Apply the circle formula: The radius is 6. Then A=3.14⋅62=113.04A=3.14\cdot6^2=113.04.
  3. Check the result: Confirm the radius-diameter relationship and use the requested value of pi or rounding instruction.

The radius is 6. Then A=3.14⋅62=113.04A=3.14\cdot6^2=113.04.

9. QuestionMultiple choice

Find the circumference of a circle with radius 1010 using π≈3.14\pi\approx3.14.

Please select an answer first.

Correct answer: A

The correct answer is 62.862.8.

  1. Identify the radius or diameter: Determine whether the problem gives the radius, diameter, circumference, or area.
  2. Apply the circle formula: Use C=2⋅3.14⋅10=62.8C=2\cdot3.14\cdot10=62.8.
  3. Check the result: Confirm the radius-diameter relationship and use the requested value of pi or rounding instruction.

Use C=2⋅3.14⋅10=62.8C=2\cdot3.14\cdot10=62.8.

10. QuestionMultiple choice

Find the area of a circle with radius 66 using π≈3.14\pi\approx3.14.

Please select an answer first.

Correct answer: B

The correct answer is 113.04113.04.

  1. Identify the radius or diameter: Determine whether the problem gives the radius, diameter, circumference, or area.
  2. Apply the circle formula: Use A=3.14⋅62=3.14⋅36=113.04A=3.14\cdot6^2=3.14\cdot36=113.04.
  3. Check the result: Confirm the radius-diameter relationship and use the requested value of pi or rounding instruction.

Use A=3.14⋅62=3.14⋅36=113.04A=3.14\cdot6^2=3.14\cdot36=113.04.

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Frequently asked questions about Grade 7 Circumference and Area of Circles

What is the difference between circumference and area?

Circumference measures the distance around a circle, while area measures the region inside the circle.

Which radius or diameter should be used in the formulas?

Use the radius in A = πr² and C = 2πr. Use the diameter directly in C = πd.

How many questions are on this page?

The page includes five mini tests with 10 questions each, for 50 Grade 7 Circumference and Area of Circles questions in total.