THE AREA OF TRIANGLE, THE AREA OF THE PARALLELOGRAM
VOLUME OF THE CUBE, VOLUME OF THE RIGHT PARALLELIPIPED, VOLUME OF THE PARALLELIPIPED, VOLUME OF THE TETRAHEDRON
PERPENDICULAR LINE ON THE REAL PLAN, THE MEDIATOR PLAN OF A SEGMENT
THE DISTANCE FROM A POINT TO A LINE, THE DISTANCE FROM A POINT TO A REAL PLAN