Math Proof: Triangles Sum To 180 Degrees
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This slide show proves that the sum of the angles of a triangle is 180 degrees.
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Content Area: Mathematics ● Subject: High School: Geometry ● Category: Congruence
Skill: G-CO.10. Prove theorems about triangles. Theorems include: measures of interior angles of a triangle sum to 180°; base angles of isosceles triangles are congruent; the segment joining midpoints of two sides of a triangle is parallel to the third side and
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