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miss Akunina
[59]
3 years ago
10
What is the area of a circle that has a circumference of 42 inches? A. 140.4 in2 B. 126.60 in2 C. 132.62 in2 D. 21.04 in2
Mathematics
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1
answer:
tankabanditka
[31]
3 years ago
7
0
Circumference = 2
r
42 = 2
r
42/(2
) = r
21/
= r
Area =
r²
=
(21/
)²
= 21²/
= 140.37
≈ 140.4
Answer: A
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