SOLUTION: A triangle has two sides of length 11 and 20. What is the smallest possible whole-number length for the third side?

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Question 1188309: A triangle has two sides of length 11 and 20. What is the smallest possible whole-number length for the third side?
Answer by Alan3354(69443) About Me  (Show Source):
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A triangle has two sides of length 11 and 20. What is the smallest possible whole-number length for the third side?
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The 3rd side must be greater than the difference between the other 2.
20-11 = 9
Must be >9
eg, 9.1, 9.01, 9.000000000001
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As a whole number (integer) must be 10.