SOLUTION: Please help me with a math problem: Write an inequality that expresses the reason the lengths 5 feet, 10 feet, and 20 feet could not be used to make a triangle. Explain how the ine

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Question 937448: Please help me with a math problem: Write an inequality that expresses the reason the lengths 5 feet, 10 feet, and 20 feet could not be used to make a triangle. Explain how the inequality demonstrates that fact.
Thanks :) :) :) :)
Found 2 solutions by richard1234, MathTherapy:
Answer by richard1234(7193)   (Show Source): You can put this solution on YOUR website!
5 + 10 < 20

Note that for any nondegenerate triangle with sides a, b, c, the sum of any two sides must be greater than the third side.
Answer by MathTherapy(10551)   (Show Source): You can put this solution on YOUR website!

Please help me with a math problem: Write an inequality that expresses the reason the lengths 5 feet, 10 feet, and 20 feet could not be used to make a triangle. Explain how the inequality demonstrates that fact.
Thanks :) :) :) :) 
With T being the 3rd side, we get the inequality: , or       

You can do the check!! 

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