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Consider triangle ABC, where angle C is a right angle. Given that cos(A) < sin(A) , select all the angle measure(s) for Angle A that would make a true statement.


Question 3 options:


10 degrees



65 degrees



45 degrees



30 degrees



85 degrees



70 degrees

Verified Answer :

cos 0º=1                           sin 0º=0
cos 45º=√2 / 2                  sin 45º=√2 / 2
cos 90º=0                         sin 90º=1

Therefore, if cos (A)< sin (A), then A>45º.

Answer: Given that cos (A)<sin(A), the angle measures for Angle A that would make a true this statement will be: 

65 degrees
70 degrees
85 degrees. 


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