# Find the area of a circle assuming n equal to 22/7 if its radius R = 7cm.

July 27, 2021 | education

| Given a circle, the radius of which is R = 7 cm. It is necessary to calculate its area.

The area of the circle (Skr) is calculated by the formula:

Scr = n * R ^ 2, where n is a mathematical constant – the number “pi”.

We calculate the area of a given circle if it is known that n = 22/7:

Scr = 22/7 * 7 ^ 2 = 22 * 7 = 154 cm ^ 2.

Answer: 154 cm ^ 2.

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