The area of the circle is 314cm2. Find the diameter of this circle.
| February 10, 2021 | education
The area of a circle can be calculated using the formula S = n * R², where n is pi, which is 3.14, and R is the radius of the circle.
Let us transform the formula for finding the radius: R = √ (S ÷ п).
Let’s calculate the radius of a circle whose area is 314 cm².
R = √ (314 cm² ÷ 3.14) = √100 cm² = 10 cm.
Find the diameter.
D = 10 cm * 2 = 20 cm.
Answer: the diameter is 20 cm.
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