Trig Ratios- Missing sides and angles

Trig Ratios- Missing sides and angles

Multiple Select

What are the three trig functions we talked about last week? (Choose three)

• Sine

• Cosine

• Tangent

• Secant

• Cosecant

Multiple Choice

We can use SOH-CAH-TOA for...

• Any triangle ever

• Non-right triangles only

• Right Triangles only

• Never

Poll

I have my notes from last week on Trig Functions filled out in front of me.

• yes

• no

Multiple Choice

What is the ratio for Cosine?

• Opp/Hyp

• Opp/Adj

• Adj/Opp

• Adj/Hyp

Multiple Choice

What is the ratio for Tangent

• Opp/Adj

• Adj/Opp

• Opp/Hyp

• Hyp/Opp

Multiple Choice

What leg is considered the hypotenuse?

• Any side

• the side opposite the smallest angle

• the side opposite the right angle

• the side opposite the shortest leg

Multiple Choice

What is the ratio for Sine?

• Hyp/Opp

• Opp/Hyp

• Opp/Adj

• Adj/Opp

Multiple Choice

How do you locate the hypotenuse on a right triangle?

• It's across from angle A.

• It's always on the left side.

• It's across from the right angle.

• It is the shortest side.

Make sure you have access to Desmos- through your calculator or computer for the next questions

Multiple Choice

Before beginning any equations with trig, I first need to make sure my calculator is set to...

• Degrees

• Radians

Multiple Choice

Which is the correct set up to solve for x?

• sin 24 = x / 12

• cos 24 = x / 12

• tan 24 = x / 12

Multiple Choice

Which is the correct set up to solve for x?

• sin 72 = 6 / x
• cos 72 = 6 / x
• tan 72 = 6 / x

Multiple Choice

Use trig ratios (SOH CAH TOA) to solve for x

• 50.7

• 50.1

• 60.7

• 61.0

Multiple Choice

What is the length of side x?

• 6.57 cm
• 7 cm
• 7.44 cm
• 26.33 cm

Multiple Choice

What equation can be used to solve for x?

• Sin(40°)= x/40 
• Sin(40º)=x/19
• Cos(40º)=x/19
• Tan(40°)=19/x

Switching Gears

Now we're going to find missing angles in right triangles

Multiple Choice

When finding missing sides, I use which function on the calculator?

• sin, cos, tan

• sin^-1, tan^-1, cos^-1

Multiple Choice

When finding missing angles, I use which function on the calculator?

• sin, cos, tan

• sin^-1, tan^-1, cos^-1

Multiple Choice

Choose the correct ratio.

• sin^-1(12/29)
• cos^-1(12/29)
• tan^-1(12/29)
• tan^-1(29/12)

Multiple Choice

Choose the correct ratio.

• sin^-1(9/20)

• cos^-1(9/20)

• tan^-1(9/20)

• cos^-1(20/9)

Multiple Choice

Find the measure of the missing angle.

• 49^o
• 50^o
• 41^o
• 33^o

Multiple Choice

Find the measure of the angle.  Round to the nearest tenth. 

• 30.8
• 32.1
• 34.3
• 36.9

Multiple Choice

Find the measure of the indicated angle (?) round to the nearest tenth.

• 9.4
• 55.2
• 20.15
• 19.4

Multiple Choice

Find the measure of the missing angle.

• 64^o
• 26^o
• 61^o
• .008^o

Multiple Choice

Solve for the missing angle.

• 32°

• 44°

• 61°

• 50°

HW Tonight

#1-13 odd on Finding missing Sides/ #2-14 EV on Finding Sides and Angles

HW Quiz on Thursday will be your asynchronous assignment!