Trig Complements

Write the trigonometric ratio for sin Z as a fraction and as a decimal rounded to the nearest thousandth. 

• 5/13 and .385
• 13/5 and 2.600
• 12/13 and .077
• 13/12 and 1.083

The hypotenuse of a 30-60-90 triangle is 6√3.  What is the measure of the shorter leg?

• 6
• 6√3
• 3√3
• 6√6

The hypotenuse of a 45-45-90 triangle is
5√2 cm long.  How long are the legs?

• 5√2 cm
• 10√ cm
• √2 cm
• 5 cm

Use a special right triangle to write cos 45 as a fraction. 

• 1
• √2
• .707
• 1 ⁄ √2

• 27/36
• 27/45
• 45/36
• 45/27

Tags

CCSS.HSG.SRT.C.6

Choose the correct ratio.

• sin(37)=x/14
• cos(37)=x/14
• tan(37)=x/14
• sin(37)=14/x

Tags

CCSS.HSG.SRT.C.6

Find Cos(A) as a decimal rounded the the nearest ten-thousandth.

• .4706
• 1.875
• .8824
• .5333

Tags

CCSS.HSG.SRT.C.6

sin 20⁰ = ?

• cos 70⁰
• sin 70⁰
• cos 20⁰
• tan 20⁰

Tags

CCSS.HSG.SRT.C.7

Which expression can be used to find x?

• x=14sin(37)
• x=14cos(37)
• x=14 ⁄ sin(37)
• x=14 ⁄cos(37)

Find the sine of A and the cosine of B. Describe how they are related

• sin A= cos B=8⁄15; same ratio
• sin A= cos B=8⁄17; same ratio
• sin A= cos B=17⁄15; same ratio
• sin A= cos B=15⁄17; same ratio