Back to Apply Law of Sines and Cosines — Problem 4 · Task Set 24

Exercises: Apply the Law of Sines and the Law of Cosines

Grade 10·22 problems·~35 min·Common Core Math - HS Geometry·standard·hsg-srt-d-11

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Fluency Practice

$Triangle ABC with sides a = 8 and b = 11 and included angle C = 50 degrees, with side c to be found$

In triangle $ABC$ , side $a = 8$ , side $b = 11$ , and angle $C = 50\degree$ . Use $\cos(50\degree) \approx 0.643$ . Find side $c$ . Round to the nearest tenth.