SOLUTION: is it possible to construct a triangle with side lengths of 11cm, 15cm, and 21cm?

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Question 549837: is it possible to construct a triangle with side lengths of 11cm, 15cm, and 21cm?
Answer by mathie123(224) About Me  (Show Source):
You can put this solution on YOUR website!
We know that in any triangle, the sum of any two sides must always be greater than the third side.
We just need to check if this is true using these sides:)
11%2B15=26%3E21
11%2B21=32%3E15
15%2B21=36%3E11
Since all of the sums are greater than the third side, it is possible to make a triangle with these three sides.