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18
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nirmaldarrick3864
11.02.2018
Math
Secondary School
answered
The shadow of a 3m long stick is 4m long. at the same time of the day, if the shadow of a flagst is 24m long, how tall is the flagstaff?
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18 m
Step-by-step explanation:
The shadow of a 3m long stick is 4m long. at the same time of the day, if the shadow of a flagstaff is 24m long, how tall is the flagstaff?
Stick Length = 3 m
Shadow of stick = 4 m
let say Angle at ground = x ( which stick shadow makes with stick)
Tanx = Perpendicular / Base
Tanx = Stick Length / Shadow of Stick
Tanx = 3/4
Let Say length of flagstaff = y m
Angle will be same
Tanx = Flagstaff Length / Shadow of Flag
=> 3/4 = y / 24
=> 3 = y/6
=> y = 3 * 6
=> y = 18
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