Law of Sines & Trig Ratios

Front

What is the Law of Sines?

Back

Front

If you are given the hypotenuse and an adjacent side, which trig function should you use?

Back

Cosine.

Front

If you are given the opposite side and hypotenuse, which trig function should you use?

Back

Sine.

Front

What is the sine ratio in a right triangle?

Back

The sine of an angle is the ratio of the length of the opposite side to the length of the hypotenuse.

Front

What is the cosine ratio in a right triangle?

Back

The cosine of an angle is the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What is the tangent ratio in a right triangle?

Back

The tangent of an angle is the ratio of the length of the opposite side to the length of the adjacent side.

Front

How do you find the sine of an angle using a right triangle?

Back

Sine is found by dividing the length of the opposite side by the length of the hypotenuse.

Front

How do you find the cosine of an angle using a right triangle?

Back

Cosine is found by dividing the length of the adjacent side by the length of the hypotenuse.

Front

How do you find the tangent of an angle using a right triangle?

Back

Tangent is found by dividing the length of the opposite side by the length of the adjacent side.

Front

What is the value of sinA if the opposite side is 36 and the hypotenuse is 45?

Back