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HELP.

 Mar 20, 2018
 #2
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Use Pythagoras' theorem:

41^2 = 40^2 + 9^2

1,681 =1,600 + 81

1,681 = 1,681 - So this a right-angle triangle.

 Mar 20, 2018
 #3
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Your triangle will be a right scalene triangle. 

 

Right because one angle is 90 degrees. 

Scalene because all three sides are different. 

 Mar 20, 2018

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