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Geometry Proofs | Congruent Triangles & CPCTC

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Geometry - 4 - Proving Triangles Congruent

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SSS, SAS, ASA to Prove Triangle Congruent (2 Column Proof)

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Topic 4-7: Using SSS, SAS & ASA to Prove Triangles Congruent (Two-Column Proofs)

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This video gives two examples of proving triangles congruent. One two column, one flowchart.

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A triangle that has one obtuse angle.

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A triangle with a right angle.

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A triangle with all three angles less than 90 degrees.

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The measure of each exterior angle of a triangle equals the sum of the measures of  its two remote interior angles

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A triangle that has all three sides congruent.

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A triangle that has two congruent sides

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A triangle that has three unequal sides.