Q:
# What Is the Reverse Triangle Inequality?

**Reverse triangle inequality states that the length of any side of the triangle is greater than the difference between the remaining two sides.** Triangle inequality states that the sum of the lengths of two sides of the triangle is greater than, or equal to, the length of the remaining side.

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Euclid proved the triangle inequality for distances in plane geometry. In a right-angled triangle, the length of the longest side, or hypotenuse, is greater than the length of the other two sides but is less than their sum. Triangle inequality is a defining property of norms and measures of distance.

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