The circumference of the circus arena is 41 m. Find the diameter and area of the arena.
| September 7, 2021 | education
The circumference is determined by the formula l = 2 * п * R, given that the radius is equal to half the diameter, then l = п * d, we express from this formula the diameter d = l: п, given thatп = 3.14 then
d = 41: 3.14 = 13 cm, radius R = 6.5 cm.
We find the area by the formula S = п * R ^ 2, S = 3.14 * 6.5 ^ 2 = 132.7 square centimeters.
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