What would be the third side of the triangle if a triangle has sides - ProProfs Discuss
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What would be the third side of the triangle if a triangle has sides of lengths 3 and 7?

This question is part of SAT Maths Practice Questions : Focus on Geometry Problems
Asked by Proprofs, Last updated: Jan 12, 2021

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3 Answers

nqjjqueen

nqjjqueen

nqjjqueen
Nqjjqueen

Answered May 21, 2017

It said that the side cannot exceed the sum of 3+7 but 14 also exceeds that sum but is considered wrong. Why?
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John Adney

John Adney

John Adney
John Adney

Answered Apr 23, 2017

Using the Pythagorean Theorem, There are two correct answers which are: square root(56), and square root(40).

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John Smith

John Smith

John Smith
John Smith

Answered Sep 15, 2016

14
2. 11

One side of a triangle must not exceed the sum of the other two sides in length. 11 is greater than 3 + 7, so 11 cannot be a side.
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