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The diameter of a circle is 18 cm. What is its area in terms of π.

2 Answers

3 votes
The area of the circle would be 81π.
User Anarchivist
by
5.6k points
2 votes

Answer:

Area,
A=(81\pi )\ cm^2

Explanation:

Given that,

The diameter of the circle, d = 18 cm

The radius of a circle is half of its diameter, r = 9 cm

The formula to find the area of a circle is given by :


A=\pi r^2

When r = 9 cm


A=\pi (9\ cm)^2


A=(81\pi )\ cm^2

So, the area of the circle is
(81\pi )\ cm^2. Hence, this is the required solution.

User Peo Bondesson
by
5.1k points
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