Pythagorean Theorem Calculator
The Pythagorean Theorem is used for calculating the hypotenuse length of a right triangle.
A right triangle with sides 6 and 8 will have a hypotenuse length of 10
because:
Hypotenuse = Square Root Of ( 6² + 8²)
Hypotenuse = Square Root Of ( 36 + 64)
Hypotenuse = Square Root Of ( 100)
Hypotenuse = 10
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EXAMPLE:
One side of a right triangle measures 5 and the hypotenuse equals 13.
What is the length of the other side?
Side 2 = Square Root of (13 ² - 5 ²)
Side 2 = Square Root of (169 - 25)
Side 2 = Square Root of (144)
Side 2 = 12
As an added bonus, all 3 angles and the triangle area will automatically be calculated.
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Do you want to solve for:
Click here to see a proof of the Pythagorean Theorem
Numbers are displayed in scientific notation with the amount of
significant figures you specify. For easier readability, numbers between .001 and 1,000
will not be in scientific notation but will still have the same precision.
You may change the number of significant figures displayed by
changing the number in the box above.
Most browsers, will display the answers properly but
if you are seeing no answers at all, enter a zero in the box above, which will
eliminate all formatting but at least you will see the answers.
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