Trigonometry - basics

What are the only types of triangles we can use trigonometry with?

• Obtuse

• Acute

• Right

• Any type of triangle

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Which is the trig function that relates the adjacent side and the hypotenuse?

• cosine

• sine

• tangent

• all of the above

Tags

CCSS.HSG.SRT.C.6

Which is the trig function that relates the opposite side and the hypotenuse?

• tangent

• sine

• cosine

• all of the above

Tags

CCSS.HSG.SRT.C.6

Which is the trig function relates the opposite side and the adjacent side?

• sine

• cosine

• tangent

• all of the above

Tags

CCSS.HSG.SRT.C.6

What is the side of the right triangle that is opposite to the right angle called?

• Short side

• Adjacent side

• Opposite side

• Hypotenuse

Which ratio represents sin(A)?

• 32/40

• 32/24

• 24/40

• 24/32

Tags

CCSS.HSG.SRT.C.6

Which ratio represents cos(C)?

• 16/34

• 16/30

• 30/34

• 34/16

Tags

CCSS.HSG.SRT.C.6

Which ratio represents tan(X)?

• 32/40

• 40/24

• 32/24

• 24/32

Tags

CCSS.HSG.SRT.C.6

What do the angles in a triangle sum to?

• Every triangle is different

• 360 degrees

• 90 degrees

• 180 degrees

Tags

CCSS.8.G.A.5

 $\cos\theta=$  

•  $\frac{opposite}{hypotenuse}$  

•  $\frac{hypotenuse}{adjacent}$  

•  $\frac{adjacent}{hypotenuse}$  

•  $\frac{opposite}{adjacent}$  

Tags

CCSS.HSG.SRT.C.6