Students are shown how to substitute measurements of interior angles of a triangle to calculate the degree of an exterior angle.

This video defines what a transformation is, as well as rigid motion and image when identifying a figure.

This video shows students an example of how to rotate a figure correctly within a plane across an axis.

This video explains how to find the area of a rectangle by multiplying the base times its height, or A=BH.

This video demonstrates how students can use what they know about the area of a parallelogram to find the area of a circle.

In this video, students see how a figure can rotate on a plane to determine the angle of rotation.