Right Triangle Trigonometry: Find a Missing Triangle Side

Choose the correct ratio.

• cos(57)=x/20

• sin(57)=x/20

• cos(57)=20/x

• sin(57)=20/x

Find the measurement of the missing side indicated

• 4.98

• 5.98

• 3.20

• 4.18

Students are trying to determine the height of the flagpole at Arlington High. They have measured out a horizontal distance of 40 feet from the flagpole and site the top of it at an angle of elevation of 52 degrees. Which below is closest to the height, h, of the flagpole?

• 31.5 feet

• 24.6 feet

• 51.2 feet

• 57.4 feet

From ∠C, what side is AB?

• Adjacent

• Hypotenuse

• Opposite

• A
• B
• C
• D

• A
• B
• C
• D

• A
• B
• C
• D

Choose the correct ratio.

• cos(33)=x/14

• sin(33)=x/14

• cos(33)=14/x

• sin(33)=14/x

Choose the correct ratio.

• sin(37)=x/14

• cos(37)=x/14

• tan(37)=x/14

• sin(37)=14/x

Choose the correct ratio.

• cos(33)=x/14

• sin(33)=x/14

• cos(33)=14/x

• sin(33)=14/x