Khan Academy / High School / Math
Lecture : Introduction to angles
By Salman Khan | Geometry - 10th grade
Lecture 1 of 31
Rate this lecture -      More Lectures - Select Lecture...1 : Introduction to angles2 : Angles - part 23 : Angles - part 34 : Angles formed between transversals and parallel lines5 : Angles of parallel lines 26 : The Angle Game7 : Similar triangles8 : Similar triangles - part 29 : Angle Game - part 210 : Acute Right and Obtuse Angles11 : Area and Perimeter12 : Circles: Radius, Diameter and Circumference13 : Area of a circle14 : The Pythagorean Theorem15 : Pythagorean Theorem II16 : 45-45-90 Triangles17 : Intro to 30-60-90 Triangles18 : 30-60-90 Triangles II19 : Solid Geometry Volume20 : Cylinder Volume and Surface Area21 : Herons Formula22 : Part 1 of Proof of Herons Formula23 : Part 2 of the Proof of Herons Formula24 : An inscribed angle is half of a central angle that subtends the same arc25 : Area of Inscribed Equilateral Triangle26 : Right Triangles Inscribed in Circles27 : Area of Diagonal Generated Triangles of Rectangle are Equal28 : Triangle Medians and Centroids29 : Triangle Medians and Centroids 2D Proof30 : Rhombus Diagonals31 : 2003 AIME II Problem 7

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Courses Index
1 : Algebra I Review - High School   (Salman Khan / Khan Academy)
2 : Geometry   (Multiple Instructors / Brightstorm)
3 : Geometry – Worked Examples   (Salman Khan / Khan Academy)
4 : Fundamentals of Geometry   (James Sousa / MathIsPower4U)
5 : Algebra II   (Multiple Instructors / Brightstorm)
6 : Algebra II – 10th grade   (Derek Owens / Derek Owens)
7 : Algebra I - Martin Gay Textbook   (Julie Harland / MathGal)
8 : Algebra II - 2008 Prentice Hall Algebra 2 Textbook   (Brad Robb / WowMath)
9 : Algebra II – Worked Examples   (Salman Khan / Khan Academy)
10 : Algebra II - Worked Problems   (Brad Robb / WowMath)
11 : Pre-Calculus   (Multiple Instructors / Brightstorm)
12 : Pre-Calculus - 11th grade   (Salman Khan / Khan Academy)
13 : Pre-Calculus & Calculus   (Derek Owens / Derek Owens)
14 : Calculus   (Multiple Instructors / Brightstorm)
15 : Calculus - 12th grade   (Salman Khan / Khan Academy)
16 : Fundamentals of Calculus   (James Sousa / MathIsPower4U)
17 : Business Calculus   (James Sousa / MathIsPower4U)
18 : Highlights of Calculus   (Gilbert Strang / MIT)
19 : AP Calculus AB - 8th Ed. Houghton Mifflin Calculus Textbook   (Brad Robb / WowMath)
20 : Fundamentals of Trigonometry - ck12.org Textbook   (James Sousa / MathIsPower4U)
21 : Trigonometry   (Salman Khan / Khan Academy)
22 : Probability   (Salman Khan / Khan Academy)
23 : Statistics   (Salman Khan / Khan Academy)