Find the area of a circle whose diameter is 6 cm.
| June 25, 2021 | education
To determine the area of a circle, we write down the formula for finding it:
S = π * r ^ 2.
We do not have a radius value, but we know the diameter. And the ratio of the radius and diameter is 1: 2. Let’s define the radius of the circle:
r = 1/2 * d = 1/2 * 6 = 3 cm.
Now we can determine the area of the circle:
S = 3.14 * 3 = 9.42 cm2.
Answer: The area of a circle is 9.42 cm2.
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