25 August, 12:29
In right ∆ABC, C is a right angle and sin A = 243/312, what is m
A) 52.19 degrees
B) 51.16 degrees
C) 44.32 degrees
D) 38.84 degrees
E) 37.91 degrees
25 August, 13:18
Sin A = cos B, where:
cos B = 243/312
Taking the arc cosine to look for the measure of the angle, this is shown below:
B = arccos (243/312)
B = 38.84 degrees
Among the choices, the correct answer is D. 38.84 degrees.
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» In right ∆ABC, C is a right angle and sin A = 243/312, what is m A) 52.19 degrees B) 51.16 degrees C) 44.32 degrees D) 38.84 degrees E) 37.91 degrees