A point is a specific location on a diagram or on a graph. It may be shown as a dot, given as a measurement or as a set of co-ordinates. | |
A line is a path between two points. A straight line is the shortest distance between two point. A line has a length. | |
Parallel lines are two, straight lines that always stay the same distance apart. The lines never meet. | |
An angle is the measurement of the turn between two intersecting lines. Angles are measured in degrees. | |
An angle of 90 degrees is a right angle. Where one line intersects another line at a right angle, the lines are perpendicular to each other. |
What is an angle of 90º called?
A Right Angle is 90º. It is shown as a square on diagrams, rather than as a curve.
Answer: A Right Angle
What is the angle formed by a perpendicular line?
A perpendicular line intersects another line at a right angle, or 90º.
Answer: 90º