A right triangles hypotenuse is the side across the triangles right angle. Instructions Enter your age and resting heart-rate. Example 1: In the simplest scenario one has measured all three sides of a triangle and then it is a matter of simple summation to find the perimeter. It doesn't matter whether you call the missing length a or b.\r\n
Replace the variables in the theorem with the values of the known sides.
\r\n332 + b2 = 1832
\r\nSquare the measures, and subtract 1,089 from each side.
\r\nFind the square root of each side.
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