 Geometry

Videos on geometry. Basic understanding of Algebra I necessary.

Begin Course
 University Khan Academy Professor Salman Khan Lectures 24 Lectures
 University Khan Academy Professor Salman Khan Lectures 24 Lectures
WATCH NEXT IN GEOMETRY Lecture 1

Introduction to angles Lecture 2

Angles (part 2) Lecture 3

Angles (part 3) Lecture 4

Angles formed between transversals and parralel lines Lecture 5

Angles of parallel lines 2 Lecture 6

The Angle Game Lecture 7

Similar triangles Lecture 8

Similar triangles (part 2) Lecture 9

Angle Game (part 2) Lecture 10

Area and Perimeter Lecture 11

Circles_ Radius, Diameter and Circumference Lecture 12

Area of a circle Lecture 13

The Pythagorean Theorem Lecture 14

Pythagorean Theorem II Lecture 15

45 Lecture 16

Intro to 30 Lecture 17

30 Lecture 18

Heron's Formula Lecture 19

Part 1 of Proof of Heron's Formula Lecture 20

Part 2 of the Proof of Heron's Formula Lecture 21

An inscribed angle is half of a central angle that subtends the same arc Lecture 22

Area of Inscribed Equilateral Triangle (some basic trig used) Lecture 23

Right Triangles Inscribed in Circles (Proof) Lecture 24

Area of Diagonal Generated Triangles of Rectangle are Equal