Finding Sides Using Trigonometry

Which trig ratio would you use for the following?

• Sin

• Cos

• Tan

• You would not be able to use trigonometry

Tags

CCSS.HSG.SRT.C.6

What is the first step when using trigonometry?

• Work out which ratio to use.

• Enter values into the calculator.

• Label the sides.

• Panic and skip to the next question.

Tags

CCSS.HSG.SRT.C.8

Solve for the misssing distance

• 18.9

• 19.5

• 47

• 27.5

Tags

CCSS.HSG.SRT.C.8

A yacht is anchored 90 feet offshore from the base of a lighthouse.  The angle of elevation from the boat to the top of the lighthouse is 26 degrees.  The distance between the yacht and the top of the lighthouse is about 100 feet.  Which of these is nearest to the height of the lighthouse? 

• 25 feet

• 45 feet 

• 110 feet 

• 135 feet 

Tags

CCSS.HSG.SRT.C.8

Find the measure of the indicated angle (?) round to the nearest tenth.

• 33°

• 49°

• 39°

• 41°

Tags

CCSS.HSG.SRT.C.8

Solve for the misssing distance

• 18.9

• 19.5

• 47

• 27.5

Tags

CCSS.HSG.SRT.C.8

A building 62 meters tall casts a shadow 21 meters long.  What is the angle of elevation of the sun?

• 19.80

• 18.71

• 70.20

• 71.29

Tags

CCSS.HSG.SRT.C.8

What is the helicopter's altitude?

• 351 ft

• 674 ft

• 751 ft

• 274 ft

Tags

CCSS.HSG.SRT.C.8

What is the length of the cable?

• 92.4 ft

• 69.3 ft

• 89.3 ft

• 46.2 ft

Tags

CCSS.HSG.SRT.C.8

We can use SOH-CAH-TOA for...

• Any triangle ever

• Non-right triangles only

• Right Triangles only

• Never

Tags

CCSS.HSG.SRT.C.7