Mathematics for IGCSE & O level - Geometrical Terms (Section 2 - No. 28)
If the radius of a circle is 5.7 cm, what is its diameter?
2.85 cm
11.4 cm
17.1 cm
22.8 cm
Explanation
The diameter is twice the radius. Diameter = 2 * 5.7 cm = 11.4 cm
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