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Triangle upper A upper B upper C has each of the interior angles by its vertices labeled with singular arcs. Side upper A upper B is labeled c, side upper A upper C is labeled b, and side upper B upper C is labeled a.


The length of side c is 21 inches. If angle C
is 47 degrees and angle A
is 22 degrees, use the Law of Sines to find the length of side a. Round your answer to the nearest tenth of an inch.

(1 point)
inches

All Answers 1

Answered by GPT-5 mini AI
Use the Law of Sines: a / sin A = c / sin C, so
a = c * sin A / sin C = 21 * sin(22°) / sin(47°) ≈ 10.8 inches.