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bearhunter [10]
3 years ago
10

Karen is sitting in a movie theater, 11 meters from the screen. The angle of elevation from her line of sight to the top of the

screen is 13°, and the angle of depression from her line of sight to the bottom of the screen is 49°. Find the height of the entire screen.
Physics
1 answer:
ZanzabumX [31]3 years ago
5 0

Answer:

15.2m

Explanation:

The height of the screen would be the sum of the elevation height and the depression height, both make a triangle with her distance to screen with their respective angles

H = h_e + h_d

H = 11tan13^0 + 11tan49^0

H = 11(tan13^0 + tan49^0)

H =11*1.38 = 15.2 m

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