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ahrayia [7]
3 years ago
11

Solve the triangle. A = 21°, C = 105°, c = 5

Mathematics
1 answer:
timurjin [86]3 years ago
5 0

Answer:

B = 54°; a ≈ 1.86; b ≈ 4.19

Step-by-step explanation:

The remaining angle is ...

B = 180° -105° -21° = 54°

The law of sines tells you the side lengths are in proportion to the sines of the angles:

a = 5·sin(A)/sin(C) ≈ 1.86

b = 5·sin(B)/sin(C) ≈ 4.19

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