SOLUTION: Solve the missing side and angle in this triangle. Side A = 11 Side B = 18 Side C = unknown Angle A = 49 degrees Angle B = unknown Angle C = unknown

Algebra ->  Triangles -> SOLUTION: Solve the missing side and angle in this triangle. Side A = 11 Side B = 18 Side C = unknown Angle A = 49 degrees Angle B = unknown Angle C = unknown       Log On


   

Question 1113338: Solve the missing side and angle in this triangle.
Side A = 11
Side B = 18
Side C = unknown
Angle A = 49 degrees
Angle B = unknown
Angle C = unknown
Found 2 solutions by Alan3354, ankor@dixie-net.com:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Solve the missing side and angle in this triangle.
Side A = 11
Side B = 18
Side C = unknown
Angle A = 49 degrees
Angle B = unknown
Angle C = unknown
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Use lower case for the sides.
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Solve the missing side and angle in this triangle.
a = 11
b = 18
c = unknown
Angle A = 49 degrees
Angle B = unknown
Angle C = unknown
============
Assuming side a is opposite angle A, etc.:
Use the Law of Sines.
a/sin(A) = b/sin(B) = c/sin(C)

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Solve the missing side and angle in this triangle.
Side a = 11
Side b = 18
Side c = unknown
Angle A = 49 degrees
Angle B = unknown
Angle C = unknown
:
Use the law of sines to find angle B
18%2Fsin%28B%29+=+11%2Fsin%2849%29
cross multiply
11*sin(B) = 18 * sin(49)
sin(B) = 13.5848%2F11
sin(B) = 1.235, impossible angle, not a valid triangle