The length of the circle is 62.8 cm. Find the area of a circle whose radius is half the radius of this circle.
September 20, 2021
Find the radius of the circle of the first circle if its length is 62.8 cm:
62.8: 6.28 = 10 cm.
Find the area of a circle whose radius is half the radius of the circle of the first circle:
3.14 * (10/2) ² = 3.14 * 25 = 78.5 cm².
Answer: the area of the second circle is 78.5 cm².
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