Search "angles"

Measuring angles in degrees

How to measure an angle in degrees

Sum of interior angles of a polygon

Showing a generalized way to find the sum of the interior angles of any polygon

Proof: Sum of measures of angles in a triangle are 180

Proof that the sum of the measures of the angles in a triangle are 180

Acute right and obtuse angles

The difference between acute, obtuse and right angles

Measuring angles

Using the KA virtual protractor to measure angles

Angles formed by parallel lines and transversals

Parallel lines, transversal lines, corresponding angles

Introduction to vertical angles

Figuring out angles at the intersection of two lines

Khan Academy
Angles
479
07:18

Finding more angles

Example of angle hunting!

Sum of the exterior angles of convex polygon

More elegant way to find the sum of the exterior angles of a convex polygon