Classify the following triangle by its given angle measures.

A triangle with angle measures of 30, 60, and 90 degrees.

A. Obtuse

B. Acute

C. Right

D. Equilateral

The answer is

C. Right

A triangle with an angle of 30 is considered an acute triangle. Because the angle is less than 90 degrees. A triangle with a degree of 60 is considered an equilateral triangle. And of course, a triangle with a degree of 90 is a right triangle