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5 votes
Find the area of a circle with diameter of 42 inches. Round to the nearest tenth.

User Kalpeshdeo
by
6.0k points

2 Answers

4 votes

Answer:

1386.4 in^2

Explanation:

User Yjzhang
by
7.3k points
4 votes

Answer:

1386.4 in^2

Explanation:

area of circle formula pi*r^2

where r=radius

radius also equals diameter over 2

so

42/2=21

radius is 21

so

pi*21^2=1385.44236023

Hope this helps!

User Misam
by
6.3k points
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