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25 Oct 2021, 06:15
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23%
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If k:3 is the ratio of the circumference to the diameter of a circle with radius x, then what is the ratio of the circumference to the diameter of a circle with radius 2x?
A. k:3
B. k:6
C. 2k:3
D. 2k:9
E. 4k:9
A. k:3
B. k:6
C. 2k:3
D. 2k:9
E. 4k:9
02 Dec 2021, 01:07
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The ratio of circumference of a circle to its diameter is the constant pi (3.14....)
Given (k:3) is ratio of the circumference to the diameter of a circle with radius x.
This implies k:3 = pi.
The ratio of the circumference to the diameter of a circle with radius 2x will also be same constant (k:3).
Answer: A
Given (k:3) is ratio of the circumference to the diameter of a circle with radius x.
This implies k:3 = pi.
The ratio of the circumference to the diameter of a circle with radius 2x will also be same constant (k:3).
Answer: A
