30-60-90 Special Right Triangles
Videos, worksheets, and solutions to help Grade 8 students learn about the 30-60-90 special right triangle.
More lessons for Grade 7 and Grade 8
A 30-60-90 triangle is a special type of right triangle. What is special about 30-60-90 triangles is that the sides of the 30-60-90 triangle always have the same ratio. Therefore, if we are given one side we are able to easily find the other sides using the ratio of 1:2:square root of three. This special type of right triangle is similar to the 45-45-90 triangle.
How to find the legs and hypotenuse in 30-60-90 triangles when given: the short leg, the long leg, or the hypotenuse.
Solve a 30-60 Right Triangle
This video provides examples of how to solve a 30-60-90 triangle given the length of one side.
Finding the Missing Side of 30-60-90 Triangle
Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.
You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.