SOLUTION: a right triangle has sides whose lengths are consecutive integers. Find the lengths of the sides. i dont know how to find the lengths of the sides.

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Question 218860: a right triangle has sides whose lengths are consecutive integers. Find the lengths of the sides.
i dont know how to find the lengths of the sides.

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
First a definition: Consecutive integers are simply whole numbers that follow one another. Example: 1, 2, 3, 4, 5, 6, etc are consecutive integers.


In general, the terms x, x+1, x+2, x+3, x+4, ... are consecutive integers (where 'x' is a whole number).



Since we're given that "a right triangle has sides whose lengths are consecutive integers", we're basically told that a=x, b=x%2B1, and c=x%2B2 where 'a' and 'b' are the legs of the triangle and 'c' is the hypotenuse.


Now remember that we can relate the sides of a triangle using the Pythagorean theorem: a%5E2%2Bb%5E2=c%5E2


Just plug in the values of 'a', 'b', and 'c' to get: x%5E2%2B%28x%2B1%29%5E2=%28x%2B2%29%5E2


x%5E2%2Bx%5E2%2B2x%2B1=x%5E2%2B4x%2B4 FOIL


x%5E2%2Bx%5E2%2B2x%2B1-x%5E2-4x-4=0 Get everything to one side.


x%5E2-2x-3=0 Combine like terms.


From here, just use the quadratic formula or factor to find 'x'. I'll let you do that.