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An engineer is surveying a building with a device that is 5 feet above the ground. He is 50 feet from the building and is looking with an angle of elevation of 50°. How tall is …
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An engineer is surveying a building with a device that is 5 feet above the ground. He is 50 feet from the building and is looking with an angle of elevation of 50°. How tall is …
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Jan 2, 2018
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An engineer is surveying a building with a device that is 5 feet above the ground. He is 50 feet from the building and is looking with an angle of elevation of 50°. How tall is the building?
Mathematics
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Seif Eddine Mouelhi
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Seif Eddine Mouelhi
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1. Check the sketch of the problem.
2. In right triangle DCE,
tan 50 can be found to be 1.19 using a scientific calculator or other software.
x=1.19*50=59.5 (feet)
3. The height of the building is 59.5+5=64.5 (feet)
Answer: 64.5 (feet)
Thkang
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Jan 8, 2018
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Thkang
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