Find the length of the circle if its radius is 28 cm.
| February 13, 2021 | education
In order to find to find the length of a circle with a radius of R = 28 cm, we need a constant value – the number π = 3 (according to the problem statement).
Let’s remember the formula for finding the circumference of a circle through the radius of a given circle.
l = 2πR, where l is the circumference, R is the radius of the circle.
We substitute the given values into the formula and perform the calculations.
l = 2 * 3 * 28 = 6 * 28 = 168 cm.
So, the circumference with a given radius R = 28 cm is equal to 168 cm.
Answer: the circumference with a given radius R = 28 cm is equal to 168 cm.
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