Lesson 5: Trigonometry Functions

What is trigonometry?

• The study of triangles.

• The study of squares.

• The study of pentagons.

• The study of heptagons.

Tags

CCSS.HSG.SRT.B.5

CCSS.HSG.SRT.C.6

What is the sine ratio?

• $\frac{opposite}{hypotenuse}$
  

• $\frac{adjacent\ }{hypotenuse}$

• $\frac{opposite\ }{adjacent}$

• $\frac{hypotenuse}{opposite}$

Tags

CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.8

What is the tangent ratio?

•  $\frac{opposite}{hypotenuse}$  

• $\frac{adjacent\ }{hypotenuse}$

• $\frac{opposite\ }{adjacent}$

•  $\frac{adjacent}{opposite}$ 

Tags

CCSS.HSF.TF.A.3

CCSS.HSG.SRT.C.6

What is the helpful phrase we can use to remember the trigonometric ratios/functions?

• SOH CAH TOA

• SAH COH TOA

• SOA COH TAH

• SOA CAH TOH

What is  $\sin\left(A\right)$  ?

•  $\frac{8}{10}$  

•  $\frac{6}{10}$  

•  $\frac{6}{8}$  

•  $\frac{8}{6}$  

Tags

CCSS.HSF.TF.A.3

CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.8

What is  $\tan\left(C\right)$  ?

•  $\frac{6}{8}$  

•  $\frac{8}{6}$  

•  $\frac{6}{10}$  

•  $\frac{8}{10}$  

Tags

CCSS.HSF.TF.A.3

CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.8

FILL IN THE BLANK:
The _______ ratio is  $\frac{adjacent}{hypotenuse}$ 

• Sine

• Cosine

• Tangent

Tags

CCSS.HSF.TF.C.8

CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.8

What is the correct equation to solve for x?

• tan (45) = x/13
• cos (45) = x/13
• sin (45) = 13/x
• sin (45) = x/13

Tags

CCSS.HSG.SRT.C.6

Find the missing value.

Round to the nearest tenths.

• 33.9 mm

• 3.4 mm

• 10.5 mm

• 36.2 mm

Tags

CCSS.HSG.SRT.C.8

Find the missing value.

Round to the nearest tenths.

• 36.6 in

• 43.7 in

• 47.8 in

• 37.4 in

Tags

CCSS.HSG.SRT.C.8