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If the lengths of two of the sides of a triangle are 9 and 1
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16 May 2017, 07:54
16 May 2017, 07:54
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Question Stats:
66% (00:24) correct
33% (00:26) wrong based on 217 sessions
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If the lengths of two of the sides of a triangle are 9 and 10, which of the following could be the length of the third side?
Indicate all such lengths.
❑ 1
❑ 11
❑ 21
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Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
Re: If the lengths of two of the sides of a triangle are 9 and 1
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18 May 2017, 13:18
18 May 2017, 13:18
2
Carcass wrote:
If the lengths of two of the sides of a triangle are 9 and 10, which of the following could be the length of the third side?
Indicate all such lengths.
❑ 1
❑ 11
❑ 21
IMPORTANT RULE: If two sides of a triangle have lengths A and B, then . . .
DIFFERENCE between A and B < length of third side < SUM of A and B
So, we get: 10 - 9 < length of third side < 10 + 9
Simplify: 1 < length of third side < 19
Only 11 works.
Answer:
Show: ::
11
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Re: If the lengths of two of the sides of a triangle are 9 and 1
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15 May 2023, 08:21
15 May 2023, 08:21
Hello from the GRE Prep Club BumpBot!
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Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
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