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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

Respuesta :

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

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

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

65 degrees
70 degrees
85 degrees.Β 


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