Triangles

This math video provides an introduction into triangles. It explains the classification of triangles based on their angle measure and the number of congruent sides. Examples include equilateral triangles, scalene triangles, isosceles, right, acute, and obtuse triangles. This video also contains practice problems on solving the angle measure of triangles.
Lines, Rays, Line Segments, & Angles: • Lines, Rays, Line Segm...
Acute, Obtuse, Right, & Straight Angles: • Acute Obtuse Right & S...
Decimal Degrees to DMS Formula: • Decimal Degrees to DMS...
Clock to Angle Problems: • Clock Aptitude Reasoni...
Angle Bisector Theorem - Midpoints: • Angle Bisector Theorem...
Converse, Inverse, & Contrapositive: • Converse, Inverse, & C...
Geometry Probability - Length & Area: • Probability With Geome...
Perpendicular Lines, Rays, & Segments: • Perpendicular Lines, S...
Complementary & Supplementary Angles: • Complementary Angles a...
Addition & Subtraction Equality Property: • Addition and Subtracti...
Multiplication & Division Property Equality: • Multiplication and Div...
Transitive Property of Congruence: • Transitive Property of...
Triangles - Basic Introduction: • Triangles
Alternate Interior & Exterior Angles: • Parallel and Perpendic...
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2 Column Proofs of Congruent Segments: • Two Column Proofs of C...
2 Column Proofs of Angles: • Geometry, Two Column P...
Triangle Congruence - SSS, SAS, ASA: • Triangle Congruence Th...
CPCTC - 2 Column Proofs With Triangles: • CPCTC Geometry Proofs ...
Median of a Triangle Formula: • Median of a Triangle F...
Altitude of a Triangle - Orthocenter: • Altitude of a Triangle...
Triangles, Medians, & Altitudes - Proofs: • Two Column Proofs - Tr...
2 Column Proofs - Isosceles Triangles: • Geometry Proofs - Isos...
Angle Side Theorem - 2 Column Proofs: • Angle Side / Base-Angl...
Hypotenuse Leg Theorem - HL Postulate: • Hypotenuse Leg Theorem...
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Detour Proofs - Double Triangle Congruence: • Detour Proofs - Double...
The Midpoint Formula: • Midpoint Formula
Missing Diagrams - 2 Column Proofs: • Missing Diagrams With ...
Right Angle Theorem - SSS & SAS: • Right Angle Theorem - ...
Perpendicular Bisector Theorem: • Perpendicular Bisector...
Altitude, Median, Midpoint & P. Bisector: • Altitudes, Medians, Mi...
Parallel & Perpendicular Lines - Slope: • Finding The Slope Give...
Indirect Proofs - Example Problems: • Indirect Proofs, Pract...
Proving Parallel Lines With Proofs: • Proving Parallel Lines...
The Exterior Angle Theorem: • Exterior Angle Theorem...
Exterior Angle Inequality Theorem: • Exterior Angle Inequal...
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Polygons: • Polygons
Quadrilaterals: • Quadrilaterals - Geometry
Parallelograms: • Parallelograms - Geometry
Rectangles - Special Quadrilaterals: • Rectangles - Propertie...
Isosceles Trapezoids: • Isosceles Trapezoids
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Geometry Review - Study Guide: • Geometry Introduction ...
Geometry Final Exam Review Questions: • Geometry Final Exam Re...