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-Dominant- [34]
3 years ago
9

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

Mathematics
2 answers:
galina1969 [7]3 years ago
3 0
The area of the circle would be 81π.
yarga [219]3 years ago
3 0

Answer:

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

Step-by-step 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.

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