Sine, Cosine, Tangent and Law of Sines

When working with Trig ratios, Law of Sines, or Law of Cosines the calculator should be in what mode?

• Radian

• Classic

• Degree

• Triangle

Which Law would you use?

• Law of Sines, but use inverse to find angle measure

• Law of Cosines, but use inverse to find angle measure

• Law of the Jungle, and watch out for the poison dart frog

• Law of Gravity, and watch out for the apples falling from the tree

What is the ratio for Sine?

Which side is opposite angle x?

• 1

• 2

• 3

Which trig function would you use to solve for x?

Which trig function would you use to solve for x?

Solve for x. Round to the nearest tenth.

• 9.8

• 0.1

• 0.038

• 9.9

Select the correct ratio for SinA

Select the correct ratio for CosC

Identify the Law of Sines