Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapter 8 - Geometry - Test - Page 620: 15

Answer

The third angle/unknown angle is $55˚$

Work Step by Step

Remember: All angles in a triangle add up to $180˚$ Let $x=$ the unknown angle in the triangle $x + 90 + 35 = 180$ $x + 125 = 180$ $x = 55˚$ Therefore the third angle/unknown angle is $55˚$.
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