The lengths of the sides of a triangle are 5, 12, and 13. What is the measure of the angle opposite to the side with length equal to 13?

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asked Dec 6, 2017 203k views

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SandeepAggarwal · Answer 1 · 2017-12-09T21:23:59+0000

Hello,

Since 5²+12²=13² (25+144=169), the triangle is rectangular and 13 is the length of the hypotenuse which opposed angle is a right angle:
answer 90°

The lengths of the sides of a triangle are 5, 12, and 13. What is the measure of the angle opposite to the side with length equal to 13?

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