Technical information
Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: Solve the problem. A domed ceiling is a parabolic surface. For the best lighting on the floor, a light source is to be placed at the focus of the surface. If 3 m down from the top of the dome the ceiling is 18 m wide, find the best location for the light source.: 13.6 m down from the top; 6.8 m down from the top; 20.4 m down from the top; 27 m down from the top
Right answer summary: 6.8 m down from the top
Question state: todo