Circumference of a circle from the radius
Circumference = π × diametre, with π = 3.14. Double the radius to get the diametre.
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A circle has a radius of 55 cm. Find its circumference. Use π = 3.14.
Answer: 345.4
A circle has a radius of 60 cm. Find its circumference. Use π = 3.14.
Answer: 376.8
A circle has a radius of 43 cm. Find its circumference. Use π = 3.14.
Answer: 270.04
Tip: Circumference = π × diametre, with π = 3.14. Double the radius to get the diametre.
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