SOLUTION: ISBN:0618372628 One angle in a triangle is a right angle and one angle is equal to 30. what is the measurement of the third angle?

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If one angle in a triangle is a right angle, then that would make the triangle a right triangle. Since 90 degrees is the measurement of a right triangle, you would subtract 30 from 90 to get 60. The other side of the triangle is 60 degrees.