Does 0.9999… = 1?

This video shows three reasons why 0.9999… equals 1.

Find the Measure of Complementary, Supplementary and Vertical Angles

This video explains how to the measure of complementary, supplementary, and vertical angles from a diagram.

Identify Complementary, Supplementary and Vertical Angles

This video explains how to identify complementary, supplementary, and vertical angles from a diagram.

The Measure of the Interior Angles of Overlapping Triangles (Algebra)

This video explains how to determine the interior angles of overlapping triangles.

The Measure of the Interior Angles of Overlapping Triangles (No Algebra)

This video explains how to determine the interior angles of overlapping triangles.

Determine the Measure of Reference Angles (Algebra)

This video explains how to determine the measure of reference angles.

Determine the Measure of Reference Angles (No Algebra)

This video explains how to determine the measure of reference angles.