Calculate the circumference of a circle whose radius is 3 cm.
| April 28, 2021 | education
A circle is a flat geometric figure, the points of which are equidistant from a given point, called the center of the circle.
Let’s write the formula for calculating the circumference:
l = 2 π r,
where l is the circumference, r is the radius of the circle, π = 3.14.
Substituting the values of the radius of the circle and the constant π into the formula, we find the length of the circle:
l = 2 × 3.14 × 3 = 18.84 cm.
Answer: The circumference is 18.84 cm.
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