Question

A cctv camera is placed on the me top of a high pole of 24 metre in such a way tha traffic can be seen beyond 25 meter of line of sight of it. find the area of the gree patch around the pole

Answer 1

in this you have to use Pythagoras theorem :

(H)2 = (B)2 + (P)2

(25)2=(B)2+(24)2

625= (B)2 + 576

625-576= (B)2

49 = (B)2

(B)=7

ans