How to find an angle in a right triangle

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GRE Quantitative Reasoning › How to find an angle in a right triangle

Questions 1 - 1
1

A triangle has three internal angles of 75, 60, and x. What is x?

45

60

75

90

110

Explanation

The internal angles of a triangle must add up to 180. 180 - 75 -60= 45.

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