Altitudes, Medians, Midpoints, Angle & Perpendicular Bisectors

This geometry video tutorial provides a basic review on the differences between an altitude, median, perpendicular bisector, angle bisector and a midpoint. In addition, it makes references to lines, rays and line segments.

Triangle Congruence – SSS, SAS, ASA:

CPCTC – 2 Column Proofs With Triangles:

Hypotenuse Leg Theorem – HL Postulate:

Detour Proofs – Double Triangle Congruence:

The Midpoint Formula:

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Missing Diagrams – 2 Column Proofs:

Right Angle Theorem – SSS & SAS:

Perpendicular Bisector Theorem:

Parallel & Perpendicular Lines – Slope:

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Indirect Proofs – Example Problems:

Proving Parallel Lines With Proofs:

The Exterior Angle Theorem:

Exterior Angle Inequality Theorem:

Polygons:

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