Pythagorean Theorem Calculator

Step 1:

Enter the values of any two angles and any one side of a triangle below for which you want to find the length of the remaining two sides.

The Pythagorean theorem calculator finds the length of the remaining two sides of a given triangle using sine law or definitions of trigonometric functions.

If a given triangle is a right angle triangle, then the length of the remaining two sides of the triangle can be calculated using the definition of sine and cosine functions given by the formula-

$sin\theta =\frac{\text{Opposite Side}}{\text{Hypotenuse}}$

$cos\theta =\frac{\text{Adjacent Side}}{\text{Hypotenuse}}$

If a given triangle is not a right angle triangle, then the length of the remaining two sides of the triangle can be calculated using the sine law given by the formula-

$\frac{sinA}{a}=\frac{sinB}{b}=\frac{sinC}{c}$

Where A, B and C are angles of the triangle.

a,b and c are sides of the triangle opposite to angles A,B and C respectively.

Step 2:

Click the arrow to submit. Choose "Find the Length of the Third Side" from the topic selector and click to see the result in our Trigonometry Calculator!