Ducked4Deld3ez Ducked4Deld3ez

14-08-2016
Mathematics

contestada

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

Respuesta :

metchelle metchelle

17-08-2016

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.

Answer Link

tamiacrawford457 tamiacrawford457

12-06-2019

Answer:

D.

38.84°

Step-by-step explanation:

Answer Link

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