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0:42:25

Similar Triangles

0:35:09

Basic Percent Problems

0:04:29

A Puzzle by Catriona Shearer

0:02:06

Rectangle Similar to its own Half

0:03:53

An Application of the Pythagorean Theorem

0:12:13

Similar Triangles in a Right Triangle

0:02:02

Multiplication with Radicals

0:01:39

Simplify a Radical Expression

0:02:05

Rationalizing a Radical Expression - More Difficult

0:02:48

The Flagpole Problem

0:04:13

Evaluate Quadratic Expression with Irrational Number.

0:03:36

Rectangle With Circles Tangents to Each Other

0:04:56

An Application of Similar Triangles

0:02:10

Area Of Isosceles Triangles

0:02:14

An Application of the Pythagorean Theorem

0:02:32

Adding Fractions with Radicals

0:01:19

Differentiating a Trigonometric Function

0:28:14

Graphing Lines

0:07:40

Proving Another Area Formula For the Triangle

0:36:17

Inverse Trigonometric Functions - Part 2

0:36:11

Inverse Trigonometric Functions - Part 1

0:08:23

Scaling Right Triangles so their Hypotenuse is 1

0:18:46

Unit Circle Definitions of Sine and Cosine

0:05:50

Rotational Angles and Co-Terminal Angles