Will give brainiest if correct
A. 69.1
B. 20.9
C. 22.4
D. 67.6
2 answers:
Using sin law;
sin A/ a = sinB/ b
where A = C or 90 degrees; a = 21
B = ? , b = 8
solving for b;
sin(90) / 21 = sin(B) / 8 ; B = 22.39 degrees
Total angle of triangle = 180
180 - 90 - 22.39 = x
x = 67.607 degrees
I think it's D. But I'm not sure if my math was correct
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