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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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5 Tests
1. Test2. Test3. Test4. Test5. Test

1. Test

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

What is the circumference of a circle with radius 55? Use π\pi exactly.

Please select an answer first.

Correct answer: A

The correct answer is 10π10\pi.

  1. Identify the radius or diameter: Determine whether the problem gives the radius, diameter, circumference, or area.
  2. Apply the circle formula: Use C=2πrC=2\pi r: C=2π⋅5=10πC=2\pi\cdot5=10\pi.
  3. Check the result: Confirm the radius-diameter relationship and use the requested value of pi or rounding instruction.

Use C=2πrC=2\pi r: C=2π⋅5=10πC=2\pi\cdot5=10\pi.

2. QuestionMultiple choice

What is the circumference of a circle with diameter 1212? Use π\pi exactly.

Please select an answer first.

Correct answer: B

The correct answer is 12π12\pi.

  1. Identify the radius or diameter: Determine whether the problem gives the radius, diameter, circumference, or area.
  2. Apply the circle formula: Use C=πdC=\pi d: C=12πC=12\pi.
  3. Check the result: Confirm the radius-diameter relationship and use the requested value of pi or rounding instruction.

Use C=πdC=\pi d: C=12πC=12\pi.

3. QuestionMultiple choice

What is the circumference of a circle with radius 77? Use π\pi exactly.

Please select an answer first.

Correct answer: C

The correct answer is 14π14\pi.

  1. Identify the radius or diameter: Determine whether the problem gives the radius, diameter, circumference, or area.
  2. Apply the circle formula: Use C=2πrC=2\pi r: C=2π⋅7=14πC=2\pi\cdot7=14\pi.
  3. Check the result: Confirm the radius-diameter relationship and use the requested value of pi or rounding instruction.

Use C=2πrC=2\pi r: C=2π⋅7=14πC=2\pi\cdot7=14\pi.

4. QuestionMultiple choice

What is the circumference of a circle with diameter 2020? Use π\pi exactly.

Please select an answer first.

Correct answer: D

The correct answer is 20π20\pi.

  1. Identify the radius or diameter: Determine whether the problem gives the radius, diameter, circumference, or area.
  2. Apply the circle formula: Use C=πdC=\pi d: C=20πC=20\pi.
  3. Check the result: Confirm the radius-diameter relationship and use the requested value of pi or rounding instruction.

Use C=πdC=\pi d: C=20πC=20\pi.

5. QuestionMultiple choice

What is the circumference of a circle with radius 33? Use π\pi exactly.

Please select an answer first.

Correct answer: A

The correct answer is 6π6\pi.

  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=2π⋅3=6πC=2\pi r=2\pi\cdot3=6\pi.
  3. Check the result: Confirm the radius-diameter relationship and use the requested value of pi or rounding instruction.

Use C=2πr=2π⋅3=6πC=2\pi r=2\pi\cdot3=6\pi.

6. QuestionMultiple choice

What is the circumference of a circle with diameter 88? Use π\pi exactly.

Please select an answer first.

Correct answer: B

The correct answer is 8π8\pi.

  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=8πC=\pi d=8\pi.
  3. Check the result: Confirm the radius-diameter relationship and use the requested value of pi or rounding instruction.

Use C=πd=8πC=\pi d=8\pi.

7. QuestionMultiple choice

What is the circumference of a circle with radius 1010? Use π\pi exactly.

Please select an answer first.

Correct answer: C

The correct answer is 20π20\pi.

  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=2π⋅10=20πC=2\pi r=2\pi\cdot10=20\pi.
  3. Check the result: Confirm the radius-diameter relationship and use the requested value of pi or rounding instruction.

Use C=2πr=2π⋅10=20πC=2\pi r=2\pi\cdot10=20\pi.

8. QuestionMultiple choice

What is the circumference of a circle with diameter 1515? Use π\pi exactly.

Please select an answer first.

Correct answer: D

The correct answer is 15π15\pi.

  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=15πC=\pi d=15\pi.
  3. Check the result: Confirm the radius-diameter relationship and use the requested value of pi or rounding instruction.

Use C=πd=15πC=\pi d=15\pi.

9. QuestionMultiple choice

What is the circumference of a circle with radius 1212? Use π\pi exactly.

Please select an answer first.

Correct answer: A

The correct answer is 24π24\pi.

  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=2π⋅12=24πC=2\pi r=2\pi\cdot12=24\pi.
  3. Check the result: Confirm the radius-diameter relationship and use the requested value of pi or rounding instruction.

Use C=2πr=2π⋅12=24πC=2\pi r=2\pi\cdot12=24\pi.

10. QuestionMultiple choice

What is the circumference of a circle with diameter 1818? Use π\pi exactly.

Please select an answer first.

Correct answer: B

The correct answer is 18π18\pi.

  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=18πC=\pi d=18\pi.
  3. Check the result: Confirm the radius-diameter relationship and use the requested value of pi or rounding instruction.

Use C=πd=18πC=\pi d=18\pi.

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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.