Determine the radius and diameter of the circle if its area is 78.5 cm2
| July 22, 2021 | education
Such a task always comes down to using the area search formula.
S = PR ^ 2 = 78.5.
Since P = 3.14, we can express the values R2 = S / P.
R2 = 78.5 / 3.14 = 25 cm.
So R = 5 cm.
D = 2R.
Hence, D = 5 * 2.
D = 10 cm.
Answer: R = 5 cm, D = 10 cm.
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