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23 Jun 2013, 02:59
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Difficulty:
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83% (01:05) correct
17%
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(1) FE = EG = 6.
(2) <FEG is 75˚.
Please provide detailed explanation!
blueseas
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23 Jun 2013, 03:55
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fozzzy
A transportation token is originally a circle. When collected they are clipped as shown. If the center of this token is E, what is the perimeter of the circular shape presented here?
(1) FE = EG = 6.
(2) <FEG is 75˚.
(1) FE = EG = 6.
(2) <FEG is 75˚.
Please provide detailed explanation!
Hi
IMO C
perimeter = (angle FEG/360)*Perimeter of circle of radius R + LENGTH OF EF + LENGTH OF EG
Here R= EF =EG
So we need to know 2 unknown things to find out the perimeter
1==>angle subtended at centre
2==>length of radius
statement 1.==> only radius given ...therefore NOT SUFFICIENT
statement 2 ==> only angle is given hence NOT SUFFICIENT .
combining two we can get the answer
HENCE C
KUDOS if it helped
evdo
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24 Apr 2014, 08:47
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blueseas
Hi
IMO C
perimeter = (angle FEG/360)*Perimeter of circle of radius R + LENGTH OF EF + LENGTH OF EG
Here R= EF =EG
Shouldn't the perimeter be = Perimeter of circle of radius R - (angle FEG/360)*Perimeter of circle of radius R + LENGTH OF EF + LENGTH OF EG ?
It leads to the same answer though...
