Unit 5 Test - Trigonometry and Special Right Triangles

_{What is the cos(θ)?}

• 8/15

• 17/15

• 17/8

• 15/17

Choose the correct ratio.

• cos(33) = x/14

• sin(33) = x/14

• cos(33) = 14/x

• sin(33) = 14/x

x ≈ _____

(to the nearest tenth)

• 13.0

• 3

• 29

• 30

Find the missing value.

Round to the nearest tenths.

• 23.6 miles

• 4.6 miles

• .9 miles

• 20.7 miles

Tags

CCSS.HSG.SRT.C.8

Find the measure of the  $\theta$  angle.

• 52.1^o

• 37.9^o

• 52.1 cm

• 50.6 cm

What is the length of side x?

• 6.57 cm
• 7 cm
• 7.44 cm
• 26.33 cm

Tags

CCSS.HSG.SRT.C.8

You are on a ship at sea. You see a lighthouse in the distance. You know the lighthouse is 175 feet tall. You measure the angle of elevation to the top of the lighthouse at 5^o. How far are you from the bottom of the lighthouse?

• 2000.3 feet

• 2007.3 feet

• 1997.9 feet

• 2134.8 feet

Tags

CCSS.HSG.SRT.C.8

Find the length of side x.

• 12

• √2

• √3

• 6

Find the length of side x.

• 18

• 18√3

• 36√3

• 12

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 = 6 y = 3√2

Tags

CCSS.HSG.SRT.C.8