Question 171995
 Find the length of the third side of the right triangle. Give an exact answer and an approximation to three decimal places. 
leg a = 27
hypotenuse = 30
leg b = 
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b^2 = 30^2 - 27^2
b^2 = 900 - 729 = 171
b = sqrt(171)
b =~ 13.077