# How to Calculate the Missing Angle in a Right Triangle?

Though the angles of a triangle are located inside of it, they do not have to remain a mystery. A triangle, also called a trigon, is a three-sided polygon. One feature that every triangle shares is... Read More »
http://www.ehow.com/how_8137874_calculate-missing-angle-right-triangle.html

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## How to Find the Third Angle of a Triangle?

Very often you will find you know two angles of a triangle but not the third. So what do you do if you need that third angle? Read on to find out.
http://www.wikihow.com/Find-the-Third-Angle-of-a-Triangle

## How to Find the Angle of a Right Triangle?

Right triangles are three-sided shapes containing a 90-degree angle. The unique shape of right triangles is the star in several mathematical theories, including the Pythagorean theorem. It is commo... Read More »
http://www.ehow.com/how_8159743_angle-right-triangle.html

## How to Find Triangle Angle Measurements?

The sum of the three angles in a triangle always equals 180 degrees. The triangle may be right, isosceles, acute, obtuse, equilateral or scalene, yet the sum of all the angles is still 180 degrees.... Read More »
http://www.ehow.com/how_8154106_triangle-angle-measurements.html

## How to Prove the Angle Sum Property of a Triangle?

To prove that the sum of all angles of a triangle is 180 degrees, follow these steps. Let's take a triangle ABC .
http://www.wikihow.com/Prove-the-Angle-Sum-Property-of-a-Triangle

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