Area of a circle: radius or diametre
Area = π × radius × radius, with π = 3.14. Halve a diametre to get the radius.
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A circle has a diameter of 56 cm. Find its area. Use π = 3.14.
Answer: 2461.76
A circle has a diameter of 94 cm. Find its area. Use π = 3.14.
Answer: 6936.26
A circle has a radius of 50 cm. Find its area. Use π = 3.14.
Answer: 7850
Tip: Area = π × radius × radius, with π = 3.14. Halve a diametre to get the radius.
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