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Find the area of a circle with a radius of 9. Leave the answer in terms of π.
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Find the area of a circle with a radius of 9. Leave the answer in terms of π.

User Md Isfar Uddin
by
7.9k points

1 Answer

14 votes

Answer:

A = 81π units²

Explanation:

the area (A) of a circle is calculated as

A = πr² ( r is the radius ) , then

A = π × 9² = 81π units²

User Tom Headifen
by
7.9k points
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