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in triangle BCD, find the value of angle B, if b = 41 cm, c = 65 cm, and d = 52 cm.
12 years ago

Answers

Henry
The Law of Cosines:

CosB = (-b^2 + c^2 + d^2)/2cd.
cosB=(-1681 + 4225 + 2704)/6760=0.77633
B== 39.1o
12 years ago

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