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If the circumference of a circle is less than 16p, which of
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11 Nov 2018, 09:55
11 Nov 2018, 09:55
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Question Stats:
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If the circumference of a circle is less than \(16\pi\), which of the following could be the area of the circle?
A. \(49\pi\)
B. \(64\pi\)
C. \(81\pi\)
D. \(101\pi\)
E. \(256\pi\)
A. \(49\pi\)
B. \(64\pi\)
C. \(81\pi\)
D. \(101\pi\)
E. \(256\pi\)
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Re: If the circumference of a circle is less than 16p, which of
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13 Nov 2018, 06:47
13 Nov 2018, 06:47
1
Carcass wrote:
If the circumference of a circle is less than \(16\pi\), which of the following could be the area of the circle?
A. \(49\pi\)
B. \(64\pi\)
C. \(81\pi\)
D. \(101\pi\)
E. \(256\pi\)
A. \(49\pi\)
B. \(64\pi\)
C. \(81\pi\)
D. \(101\pi\)
E. \(256\pi\)
We don't even need to perform any calculations here.
We're told that the circle is smaller than some given size (a circle with circumference \(16\pi\))
Since ONLY ONE answer choice is correct, the correct answer must be the smallest value.
Answer: A
Cheers,
Brent
Re: If the circumference of a circle is less than 16p, which of
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19 Jul 2020, 04:34
19 Jul 2020, 04:34
1
Given that Circumference of circle <16 pi
Ask what could the area of that circle?
Condition here is = 2 * pi * r < 16 pi
Divide by 2 pi , r < 8
lets say r = 7 , A= 49 * pi
Answer is A
Ask what could the area of that circle?
Condition here is = 2 * pi * r < 16 pi
Divide by 2 pi , r < 8
lets say r = 7 , A= 49 * pi
Answer is A
