Technical information
Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: Solve the problem. 20 m 1 m A radio telescope has a parabolic surface. If it is 1 m deep and 20 m wide, how far is the focus from the vertex?: 100 m; 5 m; 1 m; 25 m
Right answer summary: 25 m
Question state: todo