Describe what an "included" angle is. Give an example.

The angle between two sides is the included angle.

Example:

In triangle ABC,

Angle B is an included angles because it's formed by two sides AB and CB which meet at point B.

Similarly, other angles in a triangle are also included.

This is for all segments which meet at point, triangle is just one example

1/5^2 = 7.56/45