Videos - Jump directly to the list of videos in the playlist.

Playlist - Visit the complete playlist of videos on YouTube.

Build the Skill - Work along with each video using the formulas introduced.

Worksheets - Get extra practice on these concepts with custom worksheets.

Learn about the characteristics of a line, parts of a line, and how to properly notate all of them.

Learn what makes a plane, what lines lie in a plane, and also what happens if there are multiple planes. We will also look at proper notation for some of these types of lines.

Learn what makes angles complementary and how to find the complement of an angle both with a picture and mathematically.

Learn what makes angles supplementary and how to find the supplement of an angle both with a picture and mathematically.

Discover which angles will be congruent, what other features angles share, and how to properly notate these relationships.

Eight angles are formed when two parallel lines are cut by a transversal. Use the relationships between the angles to find the missing angle measures when the measure of one of the angles is known.

Download this worksheet to work the problems at the end of each video with us!

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