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How do you find the area of a circle if the diameter is 9?
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1 vote
How do you find the area of a circle if the diameter is 9?

User Avram Tudor
by
3.3k points

2 Answers

3 votes

Answer:

=63.585

Explanation:

A = π r²

9/2=4.5

4.5^2=20.25

20.25x3.14=63.585

User Weiglt
by
4.2k points
6 votes

Answer:

A≈63.62

Explanation:

A=πr2

d=2r

Solving forA

A=1 /4 x π x d^2

=1 /4 x π x 92 ≈ 63.61725

User Deepak Raj
by
4.4k points
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