Circumference of a circle
7th grade (Year 8 in England) · 16 questions · Common Core: 7.G.B.4 · England: KS3 Geometry, GCSE Foundation Geometry
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Score/ 16
Question 1
A circle has radius 4 cm. Find its circumference in cm. Use π ≈ 3.14159 (your calculator's π) and round to 1 decimal place.
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Question 2
A circle has radius 10 cm. Give its circumference in terms of π: it is kπ cm. What is k?
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Question 3
A circle has radius 6 cm. Find its circumference in cm. Use π ≈ 3.14159 (your calculator's π) and round to 1 decimal place.
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Question 4
A circle has radius 14 yd. Give its circumference in terms of π: it is kπ yd. What is k?
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Question 5
A circle has radius 10 cm. Find its circumference in cm. Use π ≈ 3.14159 (your calculator's π) and round to 1 decimal place.
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Question 6
A circle has radius 9 yd. Give its circumference in terms of π: it is kπ yd. What is k?
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Question 7
A circle has radius 5 ft. Find its circumference in ft. Use π ≈ 3.14159 (your calculator's π) and round to 1 decimal place.
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Question 8
A circle has radius 5 ft. Give its circumference in terms of π: it is kπ ft. What is k?
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Question 9
A circle has radius 14 m. Find its circumference in m. Use π ≈ 3.14159 (your calculator's π) and round to 1 decimal place.
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Question 10
A circle has radius 11 m. Give its circumference in terms of π: it is kπ m. What is k?
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Question 11
A circle has radius 12 cm. Find its circumference in cm. Use π ≈ 3.14159 (your calculator's π) and round to 1 decimal place.
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Question 12
A circle has radius 6 cm. Give its circumference in terms of π: it is kπ cm. What is k?
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Question 13
A circle has radius 3 cm. Find its circumference in cm. Use π ≈ 3.14159 (your calculator's π) and round to 1 decimal place.
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Question 14
A circle has radius 15 ft. Give its circumference in terms of π: it is kπ ft. What is k?
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Question 15
A circle has radius 11 ft. Find its circumference in ft. Use π ≈ 3.14159 (your calculator's π) and round to 1 decimal place.
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Question 16
A circle has radius 8 cm. Give its circumference in terms of π: it is kπ cm. What is k?
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