Find the area of a circle whose radius is 8 cm.
| January 16, 2021 | education
Let’s calculate the area of a circle if the radius is known, which is 8 cm.
And so the area is found by the formula S = п R 2, where п is a constant equal to 3, 1; R is the radius.
Substitute in the formula and get.
S = 3.1 * 8 2.
S = 3.1 * 64.
S = 198.4 cm 2.
Answer: the area of the circle is 198.4 cm 2.
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