Angles and intersecting lines | Geometry | Khan Academy (English)

   Wednesday, June 23, 2021   

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Angles and intersecting lines | Geometry | Khan Academy
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Lecture Description of this above Topic:

Lecture 1: Angles of parallel lines 2

Lecture 2: Finding more angles

Lecture 3: Introduction to angles (old)

Lecture 4: Find measure of vertical angles

Lecture 5: Showing angles have same measure

Lecture 6: Figuring out angles between transversal and parallel lines

Lecture 7: Proof: Sum of measures of angles in a triangle are 180

Lecture 8: Measuring angles in degrees

Lecture 9: Challenging triangle angle problem

Lecture 10: Proof: Corresponding angle equivalence implies parallel lines

Lecture 11: Acute right and obtuse angles

Lecture 12: Complementary and supplementary angles

Lecture 13: Angle measurement and circle arcs

Lecture 14: Angles formed by parallel lines and transversals

Lecture 15: Angle basics | Angles and intersecting lines

Lecture 16: Using algebra to find measures of angles formed from transversal

Lecture 17: Angles (part 3) | Angles and intersecting lines

Lecture 18: Sum of the exterior angles of convex polygon

Lecture 19: Find measure of complementary angles

Lecture 20: Introduction to vertical angles

Lecture 21: CA Geometry: Deducing angle measures

Lecture 22: Identifying parallel and perpendicular lines

Lecture 23: Measuring angles using a protractor

Lecture 24: Triangle angle example 2

Lecture 25: Angles formed between transversals and parallel lines

Lecture 26: Triangle angle example 1

Lecture 27: Triangle angle example 3

Lecture 28: Angle game (part 2)

Lecture 29: The angle game

Lecture 30: Sum of interior angles of a polygon

Lecture 31: Line and angle proofs exercise

Lecture 32: Vertical, adjacent and linearly paired angles

Lecture 33: More angle measurements using a protractor

Lecture 34: Proof: Vertical angles are equal

Lecture 35: Find measure of supplementary angles

Lecture 36: Angles (part 2)