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12 votes
Solve triangle ABC given that:

A=47 , B= 84 , b=12 cm

User Hans Nowak
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1 Answer

11 votes

Answer:

C = 49 degrees

a = 8.73 cm

c = 9.11 cm

Explanation:

If angle A is 47 and angle B is 84, angle C = 180 - (A + B) = 180 - (47 + 84) = 49

length of b is 12 cm

so according to the formula

a/sin(A) = b/sin(B) = c/sin(C)

a/sin(47) = 12/sin(84) = c/sin(49)

a = sin(47) x 12/sin(84) = 0.731 x 12/0.995 = 8.73 cm

c = sin(49) x 12/sin(84) = 0.755 x 12/0.995 = 9.11 cm

User Jods
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