11-7 Angle of Elevation and Depression

Name the angle of depression of C from A.

• ∠DAC

• ∠BCA

• ∠EBC

• ∠EAC

Name the angle of depression of B from E.

• ∠DAC

• ∠FEA

• ∠FEB

• ∠EBC

Find the angle of depression of A from D

• 15º

• 35º

• 40º

• 50º

A bird nesting in a tree 15 feet off the ground spots a worm on the ground 8 feet from the base of the tree. What is the angle of depression from the bird to the worm? Select the picture that portrays this scenario.

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CCSS.HSG.SRT.C.8

Which scenario describes the picture shown?

• A 5 foot ramp is 8 feet away from a building.  What is the angle that the ramp makes with the ground?
• A 5 foot ramp leans against an 8 foot structure.  What is the angle that the ramp makes with the ground?
• An 8 foot ramp leans
  against a building 5 feet away.  What angle does the ramp make with the ground?
• A 5 foot man is 8 feet away from a building.  What is the angle of elevation?

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CCSS.HSG.SRT.C.8

An observer standing on the top of a vertical cliff spots a house in the adjacent valley at an angle of depression of 11^o. The cliff is 56 meters tall. How far is the house from the base of the cliff to the nearest tenth of a meter? Which diagram portrays this situation?

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CCSS.HSG.SRT.C.8

An observer standing on the top of a vertical cliff spots a house in the adjacent valley at an angle of depression of 11^o. The cliff is 56 meters tall. How far is the house from the base of the cliff to the nearest tenth of a meter?

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CCSS.HSG.SRT.C.8

The sun creates a 3 foot shadow to a road sign measuring 10 feet high. What is the angle of elevation, rounded to the nearest tenth, the sun is creating at that time of day? Do not add the label (degrees).

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CCSS.HSG.SRT.C.8

The angle of depression from the top of one building to the bottom of a building across the street is $33\degree.$ If the buildings are 60 feet apart, how tall is the building rounded to the nearest tenth of a foot?

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CCSS.HSG.SRT.C.8

A school needs to install a wheelchair-accessible ramp to the front door. How long, to the nearest tenth of a foot, must the ramp be if the door is 3 feet off the ground and the angle of elevation must be  $4.7\degree?$  

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CCSS.HSG.SRT.C.8