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If a triangle has sides measuring 3 inches and 12 inches, which of th
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21 Dec 2022, 04:47
21 Dec 2022, 04:47
Expert Reply
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Question Stats:
18% (00:31) correct
81% (01:16) wrong based on 32 sessions
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If a triangle has sides measuring 3 inches and 12 inches, which of the following could not be the measure of the third side?
(A) 7.5 inches
(B) 10 inches
(C) 12.3 inches
(D) 15 inches
(E) 17.5 inches
(A) 7.5 inches
(B) 10 inches
(C) 12.3 inches
(D) 15 inches
(E) 17.5 inches
Re: If a triangle has sides measuring 3 inches and 12 inches, which of th
[#permalink]
23 Dec 2022, 05:00
23 Dec 2022, 05:00
Expert Reply
Any side x of a triangle must be greater than the difference between the lengths of the two other sides, and less than the sum of the two other sides.
Therefore, 7 < x < 17. Only 17.5 inches is outside this range.
Therefore, 7 < x < 17. Only 17.5 inches is outside this range.
Re: If a triangle has sides measuring 3 inches and 12 inches, which of th
[#permalink]
21 Jan 2023, 19:39
21 Jan 2023, 19:39
1
Carcass wrote:
Any side x of a triangle must be greater than the difference between the lengths of the two other sides, and less than the sum of the two other sides.
Therefore, 7 < x < 17. Only 17.5 inches is outside this range.
Therefore, 7 < x < 17. Only 17.5 inches is outside this range.
This should be 12+ 3 & 12-3. So, 9<x<15.... how are you getting 7 and 17?
