QUADRILATERAL
A rectangle
A Rhombus
rhombus
A rectangle or a square.
octagon
No parallel lines but a right angle triangle has perpendicular lines.
A square has 4 sides or lines that are equal in length and has 4 right angles.
1. All angles are right-angles. 2. All lines are parallel. 3. 2 pairs of 2 lines are the same length.
Perpendicular lines meet at right angles
rhombus
All of them. If its truly intersecting lines, they have to form right angles. All of them. If its truly intersecting lines, they have to form right angles.
Perpendicular lines form right angles when they intersect.