SOLUTION: On her early morning walk, Jinhee noticed that when she walked under a streetlight, her shadow would get longer the farther she was away from the light. She decided to use her shad

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Question 1128861: On her early morning walk, Jinhee noticed that when she walked under a streetlight, her shadow would get longer the farther she was away from the light. She decided to use her shadow to find out how tall the light was. When she was 14 feet from the base of the light, her shadow was 7 feet long. She is 5 feet 6 inches tall. How tall is the light?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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On her early morning walk, Jinhee noticed that when she walked under a streetlight, her shadow would get longer the farther she was away from the light.
She decided to use her shadow to find out how tall the light was.
When she was 14 feet from the base of the light, her shadow was 7 feet long.
She is 5 feet 6 inches tall.
How tall is the light?
:
Change her height to 5.5 ft
The distance from the lamp post to the tip of her shadow: 14+7 = 21 ft
The relationship of her to her shadow is the same as the lamp post to 21 ft
let h = the height of the lamp post
h%2F21 = 5.5%2F7
cross multiply
7h = 21 * 5.5
7h = 115.5
h = 115.5/7
h = 16.5, 16 ft 6 in, is the height of the lamp post