Circumference
Types of exercises: circumference of a circle, radius from the circumference, word problem: wheel turns, length of part of a circle, radius and diameter from the circumference (with π).
Exercises are drawn at random from a large bank - every click gives a different set.
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Problem
A circle has circumference 182.12 cm. How many centimetres is its radius? Take π ≈ 3.14.
Problem
A bicycle wheel has diameter 48 cm. How many metres does the bike cover in 950 turns? Take π ≈ 3.14.
Problem
Find the length of half of a circle of radius 14 cm. Take π ≈ 3.14.
Problem
Find the circumference of a circle of radius 7 cm. Take π ≈ 3.14.
Problem
A circle has a circumference of 27π m. How long is its radius?
Problem
A circle has circumference 62.8 cm. How many centimetres is its radius? Take π ≈ 3.14.
Problem
A bicycle wheel has diameter 70 cm. How many metres does the bike cover in 300 turns? Take π ≈ 3.14.
Problem
Find the length of a quarter of a circle of radius 10 cm. Take π ≈ 3.14.
Problem
Find the circumference of a circle of radius 20 cm. Take π ≈ 3.14.
Problem
A circle has a circumference of 48π cm. How long is its diameter?
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