make an angle (or 4 angles).
Quadrants.
Perpendicular lines.
4
The sides if a square or rectangle?
4
make an angle (or 4 angles).
4
Quadrants.
Perpendicular lines.
4
The sides if a square or rectangle?
perpendicular
A quadrilateral has 4 straight lines joined together by their 4 vertices.
4
Four opposite equal angles are formed when 2 lines intersect each other
4