A right triangle has one 90° angle (angle B in the picture on the left) and a variety of often-studied formulas such as:
The hypotenuse is the largest side in a right triangle and is always opposite the right angle.
(Only right triangles have a hypotenuse). The other two sides of the triangle, AC and CB are referred to as the 'legs'.
In the triangle on the left, the hypotenuse is the side AB which is opposite the right angle,.
Online tool calcualtes the hypotenuse ( or a leg) using the pythagorean theorem. (Also draws a free downloadable picture of your right Triangle!)
The pythagorean Theorem
Usually, this theorem is expressed as A2+B2=C2
In the right triangle on the left, the pythagoran theorems' formula is A2+ B2 = C2
Below are several practice problems involvin the pythagorean theorem, you can also get more detailed lesson on how to use the pythagorean theorem here.
x2=212 + 722
x2 = 5,625
X2 = 25 - 16 9