Interior Lines Math

The formula for calculating the size of an interior angle is.

Interior lines math. Your drawing also has four interior angles or angles inside between the parallel lines. Let us apply this formula to find the interior angle of a regular pentagon. Happy wednesday math friends. The angles above and below the parallel lines are outside and are called exterior angles.

Congruent angles that form with these types of lines are more commonly known as alternate interior angles alternate exterior angles corresponding angles. The sum of exterior angles of a polygon is 360. Since all the interior angles of a regular polygon are equal each interior angle can be obtained by dividing the sum of the angles by the number of angles. Interior angle of a polygon sum of interior angles number of sides.

To help you remember. I e each interior angle 180 n 2 n 180 n 2 n. In this post we are going to look at parallel lines and transversals and find the oh so many congruent and supplementary angles they form when they come together. The angle pairs are consecutive they follow each other and they are on the interior of the two crossed lines.

The pairs of angles on one side of the transversal but inside the two lines are called consecutive interior angles. When two lines are crossed by another line called the transversal. The same is true with parallel lines b e and a r and their transversal o w. Even if the angle is made up of line segments and so have a finite length the interior extends beyond them forever.

The interior of an angle is the area between the two rays that define it shown in yellow above.