Question

A lamp post standing at a point A on a circular path of radius r subtends an angle a at some point B on
the path and AB subtends an angle of 45 degrees any other point on the path, then height of the lamp post is​

Answer 1

Answer:

∵AB subtends an angle of 45o at any point on the circle 

Therefore it subtends an angle of 90o at the center.

∴AB=r2+r2

=r2

tanα=ABh

tanα=r2h

⇒h=r2tanα

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Answer 2

Answer:

1

Step-by-step explanation:

tan thita is 45 value is 1 so your ans also 1