Geometry: Collinearity, Betweenness, and Assumptions (Level 4 of 4)

This video tutorial covers four examples involving angle measurements. It begins with solving for angle ABC using algebraic expressions and geometric relations. The second example involves finding angle ABD using a ratio in a right angle. The third example uses a 1:3:2 ratio to find angles in a straight angle. The final example involves solving a system of equations to determine angle measures. The video concludes with a preview of the next series on writing simple proofs.

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