Lines
two lines that are the same distance apart and will never touch
parallel lines
lines that intersect to form a right angle
perpendicular
this has one endpoint and continues in one direction forever
What is a ray
This is a quadrilateral with two pairs of opposite sides parallel and all sides the same length. (it does not have to have right angles)
What is a rhombus
A boat has a sail with one pair of perpendicular lines, and two sides the same length. What kind of triangle is it?
What is Right, isosceles