Law of Sines and Law of Cosines

Solve non-right triangles from two angles and a side or two sides and an included angle.

Standards:G-SRT.D.10G-SRT.D.11

Try it: three questions

Real questions from the practice bank. Tap an answer to check it.

Question 1 of 1

A surveyor measures a triangular plot of land. Side a = 45 m, side b = 60 m, and the included angle C = 52°. Find the length of side c (to the nearest whole meter).

How this fits in

Law of Sines and Law of Cosines is one skill in the Trigonometry unit. Students read the unit lesson, then earn a bronze, silver, or gold medal on their last 10 answers. Medals never go down. A mastered unit comes back for review after 1, 3, 7, 16, and 35 days so it stays learned.

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