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Mathematics 18 Online
OpenStudy (anonymous):

Two sides of a triangle are 8 and 13. Which of the following could be the measurement of the third side? possible answers: 5 , 6 , 21 or 22

OpenStudy (anonymous):

the triangle inequality states that for any triangle, the sum of the lengths of any two sides must be greater than the length of the remaining side.

OpenStudy (anonymous):

greater than. so forget 5

OpenStudy (anonymous):

oh right. apologies for the mistake >.< 6 only.

OpenStudy (anonymous):

so its 6?

OpenStudy (anonymous):

\[5+8\le13 , 8+13\le21,22\] that leaves 6

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