A 60 degree angle
90 degrees
A triangle with angles that measure 30, 60, and 90 degrees is a special type of right triangle known as a 30-60-90 triangle. In this triangle, the side opposite the 30-degree angle is half the length of the hypotenuse, and the side opposite the 60-degree angle is √3 times the length of the side opposite the 30-degree angle. This relationship is based on the properties of trigonometry and the ratios of the sides in a 30-60-90 triangle.
30
30 degrees
A 60 degree angle
It is 60 degrees
90 - 30 = 60 degrees.
a 60-degree angle
150 degrees
A right angle
90 degrees
60 degrees
15 degrees. A bisected 60 degree angle makes 2 30 degree angles by definition of an angle bisector, then a 30 degree angle makes 2 15 degree angles by definition of an angle bisector.
90 degrees
60 degrees
30 degree angle