Heights and Distances Practice Test 1

Question : 1 of 40

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A small boy is standing at some distance from a flag post. When he sees the flag, the angle of elevation formed is 45°. If the freight of the flag post is 20 ft, what is the distance of the child from the flag post?

20 ft
40 ft
60 ft
All of the above
None of these

Validate

Solution:

In ΔABC,

{AB}/{BC}=\tan 45°⇒20/{BC}=1

BC =20

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