Use the low of Cosines to solve the given triangle. Round your answer to two decimal places.
?
a = 51, b = 21, c = 68
?
A. A ? 30.37°, B ? 12.02°, C ? 137.61°
B. A ? 30.37°, B ? 137.61°, C ? 12.02°
C. A ? 12.02°, B ? 30.37°, C ? 137.61°
D. A ? 137.61°, B ? 12.02°, C ? 30.37°
E. A ? 137.61°, B ? 30.37°, C ? 12.02°
Answer: A
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