Right Triangle Trig after 12.1 and 12.2

Which trigonometric function would you use to find "h", the height of the tree?

• sine

• cosine

• tangent

• none of these

Tags

CCSS.HSG.SRT.C.8

Which trig function on your calculator would you use to find the measure of Angle A?

• inverse sine

• inverse cosine

• sine

• cosine

Which expression is correct for "y"?

• y = tan^–1(31/23)

• y = sin^–1(31/23)

• y = cos^–1(31/23)

Tags

CCSS.HSG.SRT.C.8

How would you find "x" in this special right triangle?

(Special right triangles are used REALLY often in trig!)

• Divide 10 by 2.

• Multiply 10 by 2.

• Multiply 10 by √3

• Divide 10 by √3

Solve for u and v in the special right triangle.

• v = 9√3, u = 6√3
• v = 6√3 u = 9√3
• v = 9, u = 6√3
• v = 3√6, u = 6√3

Tags

CCSS.HSG.SRT.C.8

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

• 9.4
• 55.2
• 20.15
• 19.4

Tags

CCSS.HSG.SRT.C.8

Solve for x. Round to the nearest tenth.

• 44.0
• 41.4
• 1.2
• 1.0

Tags

CCSS.HSG.SRT.C.8

Solve for x. Round to the nearest tenth.

• 103.5
• 4.7
• 55.0
• 23.4

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 area of this triangle. Round your answer to the nearest tenth.

• 89.0 units squared
• 89.6 units squared
• 9.2 units squared
• 13.1 units squared

Tags

CCSS.HSG.SRT.D.9