15 videos in "Triangles"

Types of Triangles

Triangles and Angles

Congruent Triangles

SSS, SAS, ASA, & AAS Triangle Congruence

Isosceles Triangles (Part One)

Isosceles Triangles (Part Two)

Triangle Angle Word Problem 1

Triangle Angle Word Problem 2

Triangle Angle Word Problem 3

Triangle Angle Word Problem 4

Triangle Angle Word Problem 5

Word Problems for Finding Lengths of a Triangle

Use Cosine to Find Missing Length of Triangle

Use Sine to Find Missing Length of Triangle

Use Sine to Find Missing Length of Triangle
Types of Triangles
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Learn all about triangles  their classifications and properties, and how to solve problems with this knowledge.
 Triangle Quiz  A quiz for determining whether triangles are acute, obtuse, or right, and scalene, isosceles, or equilateral.
 What is the difference between a right, acute, and obtuse triangle?
 What is the difference between a scalene, isosceles, and equilateral triangle?
 What does x equal if three sides of an equilateral triangle are x + 9, 2x, and 3x  9?
 If a triangle has vertices at (2, 2), (3, 9), and (5, 3), is the triangle scalene, isosceles, or equilateral?
 How can you determine if a triangle is scalene, isosceles, or equilateral?
Different classifications of triangles are explained. Then, some problems involving the properties of different triangles are shown. This is a very understandable video.
well demonstrated