The triangular one.
A rectangle has 4 faces: 2 long faces and 2 short faces.
Because it faces much more pressure and windspeed.
10 faces 10 faces
no faces
A trapezoid is a quadrilateral and has four faces.
A hexahedron has 6 faces.
This is because the amount of refraction taking place at the parallel faces of a glass slab is equal but opposite and since the faces are parallel the emergent ray emerges parallel to the incident ray with lateral displacement.
Twelve faces.
it has six faces
6 faces
3 faces