Intro formal proof
A formal geometric proof starts from precise definitions, like exactly what a line, angle, circle, or parallel and perpendicular mean, and builds a logical chain of previously established facts to a conclusion; that's the same method used to prove standard theorems like a triangle's angles summing to 180 degrees, alternate interior angles being congruent when parallel lines are cut by a transversal, or a parallelogram's diagonals bisecting each other.
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Test your knowledge
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Midterm
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This final covers a lot of topics, so it's split into 2 parts. Each part includes a question from every one of its topics.
Final, Part 1 of 2
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Final, Part 2 of 2
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