 # How To Solve Sas Triangle

SAS - states that if two sides of one triangle are proportional to two sides of another triangle and the included angles are congruent

## Solving Sas Triangle

When you have two sides of a triangle and the angle between them, also known as SAS (side angle side), you can use the law of cosines to solve for the other three parts. Use the law of cosines to solve for lengths of the sides if you set up a SAS triangle. How to Calculate Arc Lengths Without Angles Solve for the arc length of a segment of a circle given the chord.

Solving a triangle is understood as finding all the sides and all the angles of the triangle. To do this we will use: The sine theorem. The cosine theorem. That the sum of the angles of a triangle is always 180 degrees (or π rad). Now we are going to classify all the possible cases in which we can solve the triangle.

When the triangle has a right angle, use it, that is usually much simpler. When two angles are known, calculate the third using the sum of Interior Angles of a Triangle. Try the Law of Sines before using the Law of Cosines as it is easier to use.

That the sum of the angles of a triangle is always 180 degrees (or π rad). Now we are going to classify all the possible cases in which we can solve the triangle.

We must first use the Law of Cosines to find any of the three angles, and then we can use the Law of Sines (or use the Law of Cosines again) to find a second angle and finally the sum of Interior Angles of a Triangle to find the last angle. Read Solving Triangles "LLL".

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