Unit 9 Quiz

Which one is the easy way to remember trigonometric ratios?

• Sah Coh Toa
• Soh Cah Toa
• Soh Cah Tao
• Soh Ceh Toa

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 x round to the nearest tenth.

• 46.1
• 4.9
• 16.4
• 26.9

Solve for x. Round to the nearest tenth.

• 103.5
• 4.7
• 55.0
• 23.4

• 27/36
• 27/45
• 45/36
• 45/27

• 18/30
• 24/30
• 18/24
• 24/18

• 14/48
• 48/50
• 14/50
• 48/14

Susan is flying a kite, which gets caught in the top of a tree.  Use the diagram to estimate the height of the tree. 

• 63 ft
• 65 ft
• 74 ft
• 87 ft

Choose the correct ratio.

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

What are x and y in this 30-60-90 triangle?

• x = 6 y = 3√3
• x = 3√2 y = 3
• x = 3√3 y = 6
• x = 3√3 y = 3√2