nirmal41 nirmal41
  • 13-09-2018
  • Mathematics
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at a particular time of a day a 7 m high flag staff casts a shadow which is 8.2 m long what is the building which casts a shadow 20.5 m in length at the same moment

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nhatminh082004pc2e48
nhatminh082004pc2e48 nhatminh082004pc2e48
  • 13-09-2018
A flag is perpendicular to its shadow =>
[tex] \frac{7}{8.2} = \frac{x}{20.5} [/tex]
=> x = 17.5 m
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