Find the circumference if the diameter is 15 cm.
| May 21, 2021 | education
The length of a circle can always be found knowing the radius of a given circle:
C = 2πr, where C is the circumference and r is the radius of the given circle.
The radius and diameter of any circle are related to each other by the following ratio:
D = 2r, where D is the diameter of the circle.
This means that the circumference and the diameter of a given circle are related by the following ratio:
C = πD.
Find the circumference:
C = 15π (cm).
Answer: The circumference is 15π cm.
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