The owner of a convenience store installs two security cameras, represented by points C1 and C2. Both cameras point towards the centre of the store's cash register, represented by the point R. The following diagram shows this information on a cross-section of the store. 2.8 1.0 diagram not to scale C2 3.1 6.4 The cameras are positioned at a height of 3. 1 m, and the horizontal distance between the cameras is 6.4 m. The cash register is sitting on a counter so that its centre, R, is 1.0 m above the floor. The distance from Camera 1 to the centre of the cash register is 2.8 m. (a) Determine the angle of depression from Camera 1 to the centre of the cash register. Gi