In analytical geometry, you equate the equations of the two planes and simplify.
The intersection of two planes is one straight line.
Well...... Actually, planes would be considered triangles in geometry because triangles are triangles.
Point, line and plane ARE terms from geometry.
Geometry is all about the study of angles, lines, planes, and shapes
points, lines and planes. points are always represented by a dot lines has extend in both direction and planes extend in all direction. this is true !
faces in geometry normally means planes or the surfaces of the structure referred. for example : a cube has six faces since externally 6 surfaces or planes can be seen .
Not necessarily. A sphere is a "space" figure, but is not made up of planes.