Trigonometric Ratios

Front

What are the three primary trigonometric ratios?

Back

Sine (sin), Cosine (cos), and Tangent (tan).

Tags

CCSS.HSG.SRT.C.6

Front

Define the sine function 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.

Tags

CCSS.HSG.SRT.C.6

Front

Define the cosine function 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.

Tags

CCSS.HSG.SRT.C.6

Front

Define the tangent function 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.

Tags

CCSS.HSG.SRT.C.6

Front

Back

0.819

Tags

CCSS.HSG.SRT.C.7

Front

In triangle BCD, if angle D is 90° and angle B is 51°, and CD = 8.8 feet, find the length of DB to the nearest tenth of a foot.

Back

7.1 feet.

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Front

Which trigonometric function would you use to find the length of the opposite side if you know the hypotenuse and the angle?

Back

Sine.

Tags

CCSS.HSG.SRT.C.6

Front

Back

0.4067.

Tags

CCSS.HSG.SRT.C.7

Front

Back

Tags

CCSS.HSG.SRT.C.8

Front

What is the Pythagorean theorem and how does it relate to trigonometry?

Back

Tags

CCSS.8.G.B.8