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Scrat [10]
3 years ago
8

Will give brainiest if correct A. 69.1 B. 20.9 C. 22.4 D. 67.6

Mathematics
2 answers:
Free_Kalibri [48]3 years ago
8 0
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
Anna35 [415]3 years ago
4 0
I think it's D. But I'm not sure if my math was correct
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