Sine & Cosine Ratios

What is the ratio for sine?

• opposite / hypotenuse
• opposite / adjacent
• adjacent / hypotenuse
• hypotenuse / opposite

What is the ratio for cosine?

• opposite / hypotenuse
• opposite / adjacent
• adjacent / hypotenuse
• hypotenuse / adjacent

• cos (40) = 15 / BC
  &
  sin (50) = 15 / BC
• cos (50) = 15 / BC
  &
  sin (40) = 15 / BC
• cos (40) = BC / 15
  &
  sin (50) = BC / 15
• cos (50) = BC / 15
  &
  sin (40) = BC / 15

Find  $\cos\ a=$  

•  $\frac{5}{13}$  

•  $\frac{7}{13}$  

•  $\frac{5}{7}$  

•  $\frac{13}{7}$  

•  $\frac{13}{5}$  

Tags

CCSS.HSF.TF.A.3

CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.8

Find  $\sin\ \theta=$  

•  $\frac{6}{10}$  

•  $\frac{6}{8}$  

•  $\frac{6}{12}$  

•  $\frac{6}{9}$  

•  $\frac{6}{11}$  

Tags

CCSS.HSF.TF.A.3

CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.8

Find the value of x

• 6.3

• 7.4

• 5.2

• 8.1

What are complementary angles?

• Angles that add up to 180°
• Angles that add up to 90°
• Angles that are equal to each other
• Angles that are opposite of each other when lines intersect.

Tags

CCSS.HSG.SRT.C.7

What is the complement to: cos 40⁰ = ?

• sin 50⁰

• cos 50⁰

• tan 50⁰

• sin 40⁰

Tags

CCSS.HSG.SRT.C.7

What is the missing number?
sin(60) = cos(   )

• 10
• 20
• 30
• 40

Tags

CCSS.HSF.TF.A.3

CCSS.HSF.TF.C.8

CCSS.HSG.SRT.C.8

What is the missing number?
Sin(    ) = Cos (89)

• 0
• 1
• 2
• 3

Tags

CCSS.HSF.TF.A.4

CCSS.HSF.TF.B.7

CCSS.HSG.SRT.C.8