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18 May 2016, 02:12
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
76% (01:39) correct
24%
(01:49)
wrong
based on 297
sessions
History
Date
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If the radius of the circle with centre O is 7 and the measure of angle AOB is 100, what is the best approximation to the length of arc AB ?
A. 9
B. 10
C. 11
D. 12
E. 13
Attachment:
p004-10.gif [ 647 Bytes | Viewed 16704 times ]
vivekkumar987
18 May 2016, 03:54
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The arc length : 14 π * (100/360) = 12
18 May 2016, 08:23
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Bunuel
Measure of the arc =\(\frac{θ}{360} * 2π * r\)
Measure of the arc = \(\frac{100}{360} * 2 *\frac{22}{7}* 7\)
Measure of the arc = 12
Hence answer will be (D) 12
