A lamp is situated at point and shines inside the cube. A (massive) square is hung on the midpoints of the 4 vertical faces. What's the area of its shadow?
VWO 2002
Flemish Mathematical Olympiad 2002.
Flemish Mathematical Olympiad 2002.
A lamp is situated at point and shines inside the cube. A (massive) square is hung on the midpoints of the 4 vertical faces. What's the area of its shadow?