Find the length of the circle if its radius is 15 m.

To find the length of a circle beyond its known radius, you should use the formula:

L = 2∏r.

∏ ≈ 3, 14 (standard rounding for convenience of mathematical calculations);

r = 15 m;

L = 2 × 3, 14 × 15 m;

L = 94, 2 m.

Answer: the circumference is 94.2 meters.

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