Right Triangle Trig and the Unit Circle

If you are given the two sides that are not the hypotenuse, which trig function should you use?

• sine

• cosine

• tangent

• cotangent

Tags

CCSS.HSG.SRT.C.6

What is the ratio for cosine?

• H/A

• O/A

• A/H

• A/O

Tags

CCSS.HSG.SRT.C.6

Which Trig function do you use?

• Sine

• Cosine

• Tangent

Tags

CCSS.HSG.SRT.C.6

Find x round to the nearest tenth.

• 46.1

• 4.9

• 73.5

• 68.6

Tags

CCSS.HSG.SRT.C.8

sin π/4

• √2∕2

• 1/2

• √3/2

• 0

Tags

CCSS.HSF.TF.A.2

What is the exact coordinates of  3π/4 on the unit circle?

• (−√2∕2, √2∕2)

• (−√2∕2, −√2∕2)

• (−√3∕2, −√2∕2)

• (√2∕2, −√2∕2)

Tags

CCSS.HSF.TF.A.2

tan 7π/4

• -1

• 1

• √2/2

• undefined

Tags

CCSS.HSF.TF.A.2

Solve for x. Round to the nearest tenth.

• 103.5

• 4.7

• 55.0

• 23.4

Tags

CCSS.HSG.SRT.C.8

What is the value of y?

• 3√2

• 4√3

• 6

• 1

Tags

CCSS.HSG.SRT.C.8

What is the value of x?

• 2

• 18

• 2√9

• 9√2

Tags

CCSS.8.G.B.7