Trigonometry-Finding Missing Side

Trigonometry-Finding Missing Side

Multiple Choice

Fill in the blank...
SOH ___ TOA

• COH
• CAH
• COA
• CHA

Learning Target

I will use trig ratios to find missing sides.

STEPS

• Circle angle

• Label sides that have values

• Decide which trig function to use

• Solve the equation

How to use trigonometric functions to find the missing side of a triangle

https://www.youtube.com/watch?v=wPzftAdRiAg

Multiple Choice

Solve for x. Round to the nearest tenth.

• 103.5
• 4.7
• 55.0
• 23.4

Multiple Choice

Solve for x. Round to the nearest tenth.

• 9.8
• 0.1
• 0.038
• 9.9

Multiple Choice

Choose the correct ratio.

• cos(33)=x/14
• sin(33)=x/14
• cos(33)=14/x
• sin(33)=14/x

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

Multiple Choice

From <C, what side is AB?

• Adjacent

• Opposite

• Hypotenuse

Multiple Choice

Find the length of the missing side x...

Round your answer to 1 decimal place.

• 3.8 cm

• 28.8 cm

• 3.9 cm

• 3.6 cm

Multiple Choice

Find the length of the missing side x...

Round your answer to 1 decimal place.

• 8.3 cm

• 16.7 cm

• 11.8 cm

• 8.4 cm

Multiple Choice

Find the length of the missing side x...

Round your answer to 1 decimal place.

• 10.3 cm

• 10.2 cm

• 17.5 cm

• 8.6 cm