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If each of the two lines L1 and L2 is parallel to line L3, which of th
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19 Jun 2016, 11:51
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83% (00:37) correct 17% (00:45) wrong based on 212 sessions
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If each of the two lines L1 and L2 is parallel to line L3, which of the following must be true? (A) Lines L1 , L2, and L3 lie in the same plane. (B) Lines L1 , ,L2 and L3 lie in different planes. (C) Line L1 is parallel to line L2 . (D) Line L1 is the same line as line L2. (E) Line L1 is the same line as line L3 . Aren't answers D and E contradicting with questions?
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Re: If each of the two lines L1 and L2 is parallel to line L3, which of th
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19 Jun 2016, 13:12
If each of the two lines L1 and L2 is parallel to line L3, it means L1  L2  L3. And thats exactly in answer choice C.



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Re: If each of the two lines L1 and L2 is parallel to line L3, which of th
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01 Aug 2017, 07:33
Bunuel wrote: If each of the two lines m and n are parallel to line p, which of the following must be true?
(A) Lines m, n and p lie in the same plane (B) Lines m, n and p are in different planes (C) Line m is parallel to line n (D) Line m is the same line as line n (E) Line m is the same line as line p The rest of the statements may or may not be true. But, if both line m  p and n  p, line m must be definitely parallel to n(Option C)
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Re: If each of the two lines L1 and L2 is parallel to line L3, which of th
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01 Aug 2017, 08:07
Bunuel wrote: If each of the two lines m and n are parallel to line p, which of the following must be true?
(A) Lines m, n and p lie in the same plane (B) Lines m, n and p are in different planes (C) Line m is parallel to line n (D) Line m is the same line as line n (E) Line m is the same line as line p (A) Lines m, n and p lie in the same plane  INCORRECTReasons: m and p could be in one plane and n and p could be in another plane hence not necessarily they all will be in same plane (B) Lines m, n and p are in different planes  INCORRECTReasons: m, n and p could all be in one plane as well (C) Line m is parallel to line n  CORRECTSince m and p are parallel on one part and n and p are parallel on other plane then there must be a plane containing lines n and m as well hence they must be parallel not necessarily in the same plane containing line p as well (D) Line m is the same line as line n  INCORRECT(E) Line m is the same line as line p  INCORRECTANswer: Option C
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Re: If each of the two lines L1 and L2 is parallel to line L3, which of th
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02 Aug 2017, 13:35
Bunuel wrote: If each of the two lines m and n are parallel to line p, which of the following must be true?
(A) Lines m, n and p lie in the same plane (B) Lines m, n and p are in different planes (C) Line m is parallel to line n (D) Line m is the same line as line n (E) Line m is the same line as line p We have a theorem that says: If two lines each are parallel to a third line, then they are parallel to each other. Since line m and line n are both parallel to line p,lines m and n must also be parallel to each other. Answer: C
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Re: If each of the two lines L1 and L2 is parallel to line L3, which of th
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05 Apr 2019, 14:50
How can we assume L1 /= L2? If L1 and L2 are the same lines then they intersect infinitely and are therefore not parallel...



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Re: If each of the two lines L1 and L2 is parallel to line L3, which of th
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05 Apr 2019, 20:55
t4hwg wrote: How can we assume L1 /= L2? If L1 and L2 are the same lines then they intersect infinitely and are therefore not parallel... There is a theoram which says if two lines are parallel to a third line , then all three lines are parallel to one another means L1 L3 and L2  L3 then , L1  L2  L3 hope this helps award kudos if helpful Posted from my mobile device



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Re: If each of the two lines L1 and L2 is parallel to line L3, which of th
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06 Apr 2019, 08:32
m1033512 wrote: t4hwg wrote: How can we assume L1 /= L2? If L1 and L2 are the same lines then they intersect infinitely and are therefore not parallel... There is a theoram which says if two lines are parallel to a third line , then all three lines are parallel to one another means L1 L3 and L2  L3 then , L1  L2  L3 hope this helps award kudos if helpful Posted from my mobile deviceThat seems rather arbitrary though doesn’t it? For example: L1 is (0,2) through (5,2) L2 is Y=2 L3 is Y=0 In this case, both lines 1 and 2 are parallel to 3 but not to each other. Is there some special line nomenclature that I’m missing?



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Re: If each of the two lines L1 and L2 is parallel to line L3, which of th
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31 May 2019, 04:27
Why is this wrong ? (A) Lines m, n and p lie in the same plane If they are parallel how can they be in different plane ? ( We just have x and y plane right )



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Re: If each of the two lines L1 and L2 is parallel to line L3, which of th
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18 Jul 2019, 17:29
if L1 and L2 aren't parallel to each other then they cannot be parallel to L3 as they'd intersect at some point.




Re: If each of the two lines L1 and L2 is parallel to line L3, which of th
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18 Jul 2019, 17:29






