Adjacent Supplementary Angles Math
Two adjacent oblique angles make up straight angle pom below.
Adjacent supplementary angles math. For example you could also say that angle a is the complement of angle b. For polygons such as a regular pentagon abcde below exterior angle gbc and its interior angle abc are supplementary since they form a straight angle abg. This is adding up to 90 degrees. Often the two angles are adjacent in which case they form a linear pair like this.
The two angles are supplementary so we can find the measure of angle pon pon 115 180. If they happen to be adjacent then the two outside sides will form a right angle. Since the measure of angle a plus the measure of angle b 180 degrees a and b are supplementary angles. In the figure above the two angles pqr and jkl are supplementary because they always add to 180.
When you have a right angle the two sides of a right angle are considered to be perpendicular. Each angle is called the supplement of the other.