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mathpig
Posts:
8
Registered:
3/16/10


On Regents Exam
Posted:
May 3, 2011 6:45 PM


There is a question using both the law of Sines and Cosines, and first you solve for a side and use it to find an angle. Say the side is an irrational number (ex. 10.254873209). Can a student round it to say the nearest hundredth and use it to solve an angle OR should a student use the 10.254873209 to solve the angle?
I have always taught students to use the number and not to round it until the end (the answer) but just wondered if that is allowed.



