~APEX~ A parallel line through a point not on the line
~APEX~ A parallel line through a point not on the line
perpendicular line segment (apex)
A cube has 12 edges, and each edge is perpendicular to 4 other edges. However, since each perpendicular relationship is counted twice (once for each edge), the total number of unique perpendicular line segments in a cube is 12. Thus, a cube has 12 perpendicular line segments.
A box has 12 edges, and each edge is perpendicular to 4 other edges. However, each pair of perpendicular edges can be counted twice (once for each edge), so the total number of unique pairs of perpendicular line segments is 12. Thus, there are 12 perpendicular line segments in a box.
You can construct a parallel to a line through a point not on the line. (perpendicular line segment)
~APEX~ A parallel line through a point not on the line
~APEX~ A parallel line through a point not on the line
~APEX~ A parallel line through a point not on the line
You construct a line perpendicular to the original and then a line perpendicular to this second line.
You construct a line perpendicular to the original and then a line perpendicular to this second line.
perpendicular line segment (apex)
perpendicular line segment (apex)
It is indeed possible to repeat a grade twice. You will repeat the same grade until you improve.
perpendicular line segment (apex)
No
Yes, saying "repeat twice" is correct in the context of giving a specific instruction to do something twice in a sequence. It is a clear and concise way to communicate the desired action.