Question 422365
 In a right triangle find the length of the side not given. 
b=1 and c= SQRT 5 and a= ?
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Pythagoras: 
hypotenuse^2 = leg1^2 + leg2^2
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(sqrt(5))^2 = 1^2 + a^2
5 = 1 + a^2
a^2 = 4
a = 2
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Cheers,
Stan H.
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