Find the length of a circle whose radius is 20 cm.
| September 1, 2021 | education
A circle is a flat geometric figure whose points are located at the same distance from a given point, the center of the circle.
The circumference through the radius is calculated by the formula:
l = 2πr,
where l is the circumference, r is the radius, π = 3.14159
Substituting the known values of r and π into the formula, we find l:
l = 2 × 3.14 × 20 = 125.6 cm.
Answer: The circumference is 125.6 cm.
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