In triangle ABC, , AB = 5 cm

MATHEMATICS · Multi-part · A Level · Mathematics · Trigonometry · Trigonometry

Problem

In triangle ABC, ACB^=42∘\hat{ACB} = 42^\circ , AB = 5 cm, and AC = 7 cm. (1) Find the two possible measures of ABC^\hat{ABC} . (2) Find the area of triangle ABC in each case.

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