30-60-90 Right Triangles

Hypotenuse equals twice the smallest leg, while the larger leg is sqrt(3) times the smallest.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

30-60-90 Right Triangles

by CK-12 //basic
Apply the special properties of 30-60-90 right triangles.
MEMORY METER
This indicates how strong in your memory this concept is
2

30-60-90 Right Triangles

This concept teaches students about the 30-60-90 special right triangle and how to apply its properties.
MEMORY METER
This indicates how strong in your memory this concept is
1

30-60-90 Triangles

MEMORY METER
This indicates how strong in your memory this concept is
0

30-60-90 Right Triangles

This concept teaches students about the 30-60-90 special right triangle and how to apply its properties.
MEMORY METER
This indicates how strong in your memory this concept is
0
• PLIX

Yield Sign

30-60-90 Right Triangles Interactive
MEMORY METER
This indicates how strong in your memory this concept is
0
• Video

306090 Right Triangles Principles

This video gives more detail about the mathematical principles presented in 306090 Right Triangles.
MEMORY METER
This indicates how strong in your memory this concept is
0
• Video

306090 Right Triangles Examples

This video shows how to work step-by-step through one or more of the examples in 306090 Right Triangles.
MEMORY METER
This indicates how strong in your memory this concept is
0
• Video

30 60 90 Triangles

by CK-12 //basic
Introduces 30 60 90 triangles with some 45 45 90 triangle practice problems.
MEMORY METER
This indicates how strong in your memory this concept is
0
• Video

30-60-90 and 45-45-90 Triangles

by CK-12 //basic
This video will help you begin to develop the idea of common reference triangles.
MEMORY METER
This indicates how strong in your memory this concept is
0
• Video

Solving Special Right Triangles

by CK-12 //basic
Shows how to use the ratio of 30-60-90 and 45-45-90 right triangles to solve special right triangles.
MEMORY METER
This indicates how strong in your memory this concept is
0
• Video

Special Right Triangle: 30-60-90 Principles - Basic

by CK-12 //basic
This video provides the student with a walkthrough on 30-60-90 triangles.
MEMORY METER
This indicates how strong in your memory this concept is
0
• Video

Special Right Triangle: 30-60-90 Examples - Basic

by CK-12 //basic
This video provides the student with a walkthrough of one or more examples from the concept "Special Right Triangle: 30-60-90".
MEMORY METER
This indicates how strong in your memory this concept is
0
• 0
• Critical Thinking

30-60-90 Right Triangles Discussion Questions

A list of student-submitted discussion questions for 30-60-90 Right Triangles.
MEMORY METER
This indicates how strong in your memory this concept is
0
• Real World Application

Fighting the War on Drugs Using Geometry and Special Triangles

Why should drug dealers study their geometry?
MEMORY METER
This indicates how strong in your memory this concept is
0
• Real World Application

Home Angles

Find out how to build your own triangle climbing wall volume.
MEMORY METER
This indicates how strong in your memory this concept is
0
• Study Guide

Special Right Triangles Study Guide

The special triangles 45-45-90, 30-60-90, and equilateral triangle are covered in this study guide.
MEMORY METER
This indicates how strong in your memory this concept is
0

Special Right Triangles Jeopardy

MEMORY METER
This indicates how strong in your memory this concept is
0
• Flashcards

30-60-90 Triangles

by Tiffany Kwok //basic