If the angle of elevation of the sun is 11º20’, how long is the shadow on the level ground of a man who is 5.5 ft tall?
回答 (2)
2016-02-20 9:18 am
Let x ft be the length of the shadow.
The man is vertical, while the shadow is horizontal.
Hence, a right-angled triangle is formed.
With respect to the angle 11°20', the man is the opposite side, while the shadow is the adjacent side.
tan11°20' = 5.5/x
x = 5.5/tan11°20'
x = 27.4
Length of the shadow = 27.4 ft
The man is vertical, while the shadow is horizontal.
Hence, a right-angled triangle is formed.
With respect to the angle 11°20', the man is the opposite side, while the shadow is the adjacent side.
tan11°20' = 5.5/x
x = 5.5/tan11°20'
x = 27.4
Length of the shadow = 27.4 ft
2016-02-20 5:00 pm
tan 11º 20` = 5.5 / x
x = 5.5 / tan 11² 20`
x = 27.5 ft------------length of shadow
x = 5.5 / tan 11² 20`
x = 27.5 ft------------length of shadow
收錄日期: 2021-04-18 14:27:50
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