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Angle of Elevation and Depression Worksheet

Explore angle of elevation and depression with real-world problems involving trigonometry for grade 9 students.

Grade 9 Math TrigonometryAngle of Elevation and Depression
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Includes

2 Short AnswerTrue / FalseMultiple Choice

Standards

CCSS.MATH.CONTENT.HSG.SRT.C.8
6 sections · Free to use · Printable
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Angle of Elevation and Depression

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Read each problem carefully and solve for the unknown angle or side. Round your answers to two decimal places where necessary.

1. A person standing 50 meters away from the base of a building observes the top of the building at an angle of elevation of 35 degrees. Calculate the height of the building.

35°50 mh

2. A ladder is leaning against a wall. The base of the ladder is 3 meters from the wall, and the angle of elevation of the top of the ladder is 60 degrees. How long is the ladder?

60°3 mL

3. From the top of a cliff 100 meters high, the angle of depression to a boat out at sea is 25 degrees. How far is the boat from the base of the cliff?

25°100 mx

4. An airplane flying at an altitude of 5000 feet observes a runway at an angle of depression of 15 degrees. What is the horizontal distance between the airplane and the runway?

15°5000 ftx

5. The angle of elevation is measured upwards from the horizontal line.

T

True

F

False

6. The angle of depression is always equal to the angle of elevation when observed from opposite ends of the same horizontal line.

T

True

F

False

7. If the angle of elevation of the sun is 40 degrees, and a tree casts a shadow of 20 meters, what is the approximate height of the tree?

a

15.32 m

b

16.78 m

c

18.39 m

d

23.84 m

8. A bird is flying at a height of 100 meters. A person on the ground observes the bird at an angle of elevation of 60 degrees. What is the horizontal distance between the person and the bird?

a

57.74 m

b

86.60 m

c

100.00 m

d

173.21 m