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18 Aug 2019, 08:38
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66% (00:38) correct
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(1) The length of arc LMN is half the circumference of the circle.
(2) LN is the diameter of the circle.
Source: Princeton Review, Cracking the GMAT Premium 2020
18 Aug 2019, 08:40
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Xin Cho
Attachment:
GMAT.jpg
Is angle M = 90?(1) The length of arc LMN is half the circumference of the circle.
(2) LN is the diameter of the circle.
Source: Princeton Review, Cracking the GMAT Premium 2020
Is angle M = 90?
(1) The length of arc LMN is half the circumference of the circle.
If length of arc LMN is half the circumference of the circle then LN is the diameter of the circle
Diameter of a circle extends 90 on the circumference of the circle
M = 90
SUFFICIENT
(2) LN is the diameter of the circle.
Diameter of a circle extends 90 on the circumference of the circle
M = 90
SUFFICIENT
IMO D
18 Aug 2019, 08:43
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Kinshook can I possibly ask you how we know from (1) that LN is the diameter?
