What is parallel line? Line are parallel if they are always the same distance apart (called “equidistant”), and will never meet. Just remember. Always the same distance apart and never touching.
What is Interior angle? An Interior Angle is an angle inside a shape
Note: When we add up the Interior Angle and Exterior Angle we get a straight line, 180°. (See Supplementary Angles)
What is Exterior angle? The angle between any side of a shape, and a line extended from the next side.