C-13-Q028mediumsingle_mcq
If two planes intersect in a straight line, the angle between two lines drawn from any point on the intersection line, each perpendicular to it and lying in each plane, is called what?
If two planes intersect in a straight line, the angle between two lines drawn from any point on the intersection line, each perpendicular to it and lying in each plane, is called what?
- asolid angle
- bplane angle
- cdihedral angle
- doblique angle