www.reference.com/article/construct-135-degree-angle-a4114831391b42d8

Construct a 135-degree angle by first constructing a 90-degree angle. Construct an angle bisector for one side of the right angle. The angle addition theorem allows addition of the resulting 90-degree and 45-degree angles to create the required angle. The construction t...

www.reference.com/article/90-degree-angle-416e68e30be042fe

A 90-degree angle has an internal angle equivalent to 90 degrees and forms a perfect L shape. It is also known as a right angle.

www.reference.com/article/many-degrees-right-angle-c504884e507c6012

A right angle has 90 degrees. Angles are measured on a scale from 0 to 360 degrees. Right angles represent one-fourth of a full 360-degree revolution.

www.reference.com/article/360-degree-angle-called-10067c4a0d7499b7

A 360 degree angle is called a full circle. Angles can be measured from zero degrees all the way to 360 degrees because 360 degrees is one full rotation.

www.reference.com/article/180-degree-angle-called-11edb61ed5e86b6d

A 180-degree angle is called a straight angle. Angles that are exactly 90 degrees are called right angles, while those that are between 0 and 90 degrees are called acute. Angles that are between 90 and 180 degrees are considered obtuse.

www.reference.com/article/angle-zero-degrees-a590f0c8f049463b

A zero degree angle appears as a straight line that travels from the point of inception to the right or positive side of a number line. If the line travels both left and right from the point of inception, it is considered a 180 degree angle or straight angle.

www.reference.com/article/45-degree-angle-look-like-a99577b26314c0cd

A 45-degree angle looks like the bisection of a right angle. If one constructs a right angle by drawing one axis horizontally and the other axis vertically, a 45-degree angle is halfway between a flat slope and a vertical slope.