Given the triangle ABC, if side a is 40 cm, side b is 25 cm, and side c is 18 cm, find angle C. Please round to one decimal. Select one: O a. 71.9° O b. 25.6° O c. 18.1° O d. 136.3°

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A: As per the guidlines  we have to solve one question.  Please repost other question.

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