SOLUTION: In a right triangle, find the length of the side not given. b = 2, c = square root of 13. I got as far as {{{a^2+4=sqrt( 13 ) }}} Where do I go from here?

Question 197399: In a right triangle, find the length of the side not given.
b = 2, c = square root of 13.
I got as far as
Where do I go from here?
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
In a right triangle, if the length of side b = 2 and the length of side, find the length of side a.
Using you get:
Simplifying...
Subtract 4 from both sides.
Take the square root of both sides.

The answer is a = 3
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