Right Triangle Trigonometry Precalculus

What is Sin C? Write your answer as a fraction.

Mathematical Equivalence

ON

Tags

CCSS.HSG.SRT.C.6

Find a.

• 3

• 6

Tags

CCSS.HSG.SRT.C.8

Solve for IR

• 28

• 7

Tags

CCSS.HSG.SRT.C.8

This is a 45, 45, 90 degree triangle. Which two sides would be marked with an L?

• AB

• BC

• CA

Answer explanation

L can be replaced with any variable.

Tags

CCSS.HSG.CO.C.10

This is a 30, 60, 90 degree triangle. Which side would be marked with an L?

• AB

• BC

• CA

Answer explanation

L can be replaced with any variable.

Tags

CCSS.HSG.CO.C.10

This is a 30, 60, 90 degree triangle. Which side would be marked with a 2L?

• AB

• BC

• CA

Answer explanation

L can be replaced with any variable.

Tags

CCSS.HSG.CO.C.10

Match the special right triangle relationships of 30 degrees to their trigonometric function values of the special angles.

• sinθ

• cosθ

• tanθ

Answer explanation

This is something you will really need to memorize!

Tags

CCSS.HSG.SRT.C.7

Match the special right triangle relationships of 60 degrees to their trigonometric function values of the special angles.

• cosθ

• tanθ

• sinθ

Answer explanation

This is something you will really need to memorize!

Tags

CCSS.HSG.SRT.C.7

What Greek letter is often used to represent an acute angle of a right triangle?

• Delta

• Alpha

• Theta

• Beta

Answer explanation

Tags

CCSS.HSG.CO.A.1

Which trigonometric function is the adjacent over the hypotenuse?

• Tangent

• Sine

• Cosine

• Secant

Answer explanation

Cosine is written as cos(x).

Tags

CCSS.HSG.SRT.C.6