4. In the Residential Infrastructure area, buildings are planned with a height of 30 meters. Calculate the angle of depression someone would make from the top of a building to the water fountain on the ground 20 meters away from the building. (3 marks) 5. In the Commercial Zones, a square courtyard is designed with sides of 45 meters. Calculate the length of the shadow cast by a structure in the courtyard when the sun is at an angle of 30 degrees from the ground.

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter4: Quadrilaterals
Section4.4: The Trapezoid
Problem 24E: The state of Nevada approximates the shape of a trapezoid with these dimensions for boundaries: 340...
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4. In the Residential Infrastructure area, buildings are planned with a height of 30 meters. Calculate the angle of depression someone would make from the top of a building to the water fountain on the ground 20 meters away from the building. (3 marks) 5. In the Commercial Zones, a square courtyard is designed with sides of 45 meters. Calculate the length of the shadow cast by a structure in the courtyard when the sun is at an angle of 30 degrees from the ground.
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