1.A security light is being installed outside a loading dock. The light must be placed at a 65° angle so that it illuminates a parking lot. If the distance from the end of the parking lot to the loading dock is 125 feet, what is the height of the security light?
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2.The angle of elevation of a ladder leaning against a wall is 72°. If the ladder is 20 feet long, how far is the base of the ladder from the wall?
3.If the distance from the top of a building to the tip of its shadow is 50 feet and the sun makes a 75 degree angle with the wall as shown in the image below, what is the length of its shadow?
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Can you show me how to do them??plz
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2.The angle of elevation of a ladder leaning against a wall is 72°. If the ladder is 20 feet long, how far is the base of the ladder from the wall?
3.If the distance from the top of a building to the tip of its shadow is 50 feet and the sun makes a 75 degree angle with the wall as shown in the image below, what is the length of its shadow?
http://curriculum.kcdistancelearning.com…
Can you show me how to do them??plz
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Draw a diagram and label the parts you know.
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Tan(65) = y/125
Y = tan(65)* 125
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x/20 = cos(72)
x = cos(72)*20
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You can solve the third question in a similar manner.
Draw a diagram and label the parts you know.
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Tan(65) = y/125
Y = tan(65)* 125
---
x/20 = cos(72)
x = cos(72)*20
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You can solve the third question in a similar manner.