Introduction to Soh Cah Toa

What is the side opposite angle A?

• 12

• 13

• 5

• 25

What do you use to find the missing side?

• sin

• cos

• tan

Find the length of the missing side. 

• 20 in.

• 68 in.

• 16 in.

• 80 in.

What is the correct ratio to solve for w?

• sin 40 = w/28

• cos 40 = w/28

• tan 40 = w/28

• sin 40 = 28/w

Set up the problem.

• sin(47) = x/28

• cos(47) = x/28

• tan(47) = x/28

• cos(47) = 28/x

What is the length of side x?

• 6.57 cm

• 7 cm

• 7.44 cm

• 26.33 cm

Solve for x.

• 24.20

• 4.92

• 290.4

• 29.75

Find the measure of the indicated angle.

• 9.39

• 55.2

• 20.2

• 19.4

Set up the problem to solve for x.

• sin(47) = x/28

• cos(47) = x/28

• tan(47) = x/28

• cos(47) = 28/x

Which equation would you use to solve for x?

• sin 62 = 10/x

• tan 62 = 10/x

• tan 62 = x/10

• cos 10 = x/62