Security Camera 1
A shop owner wants to prevent shoplifting. He decides to install a security camera on the ceiling of his shop. The camera can turn right round through 360° in all directions. The shop owner places the camera at point P, in the corner of the shop. The plan view below shows where ten people are standing in the shop.
EXPLORE
- Which people in the shop cannot be seen by the camera at P?
- The shop owner says, “15% of the shop is hidden from the camera.” Show clearly that he is correct.
- The shop owner decides to move the camera so that it can see as much of the shop as possible. On the plan view show the best place for the camera so that it can see as much of the shop as possible.