The diameter of the circle is 16 cm. Find the area of a circle whose radius is half the radius of the first circle.

univerkov | July 1, 2021 | education

Let’s calculate the radius of the first circle if it is equal to half the diameter:

16: 2 = 8 cm.

Let’s calculate the radius of the second circle if it is half the radius of the first circle:

8: 2 = 4 cm.

Find the area of the second circle:

3.14 * 42 = 3.14 * 16 = 50.24 cm2 = 50 cm2.

Answer: the area of the circle is 50 cm2.

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