Find Missing Side Using Trig

Find y. First, think about what trig ratio will be used. Then set-up your equation. Finally, solve the equation for x. Be sure your calculator is in degree mode!

• 0.05

• 0.03

• 15.26

• 9.54

What is the acronym to help you remember the ratios to use in trigonometry?

• RIGHTANG

• SOHCAHTOA

• SHOCHATOA

What type of triangles do you use the trig ratios with?

• any type

• right triangle

• obtuse triangle

• acute triangle

Which trig ratio would you use to solve for x?

• sine

• cosine

• hypotenuse

• tangent

Solve for x. First, think about what trig ratio will be used. Then set-up your equation. Finally, solve the equation for x. Be sure your calculator is in degree mode!

• 8

• 14

• 19.8

• 9.9

If you are given the opposite side and hypotenuse, which trig function should you use?

• sine

• cosine

• tangent

• cotangent

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

Find the measurement of the missing side indicated

• 4.39

• 3.21

• 2.19

• 2.05

Find the measurement of the missing side indicated

• 4.98

• 5.98

• 3.20

• 4.18

Solve for x.

• 10

• 11.3

• 12.0

• 15.0