Drawing plane figures using coordinates of points

Drawing plane figures using coordinates of points

By using a ruler, you can join the pairs of coordinate points which are sequentially aligned to get different types of plane figures. Therefore, the vertices of the resulting plane figures are the coordinate points used to form the figures.

Example 1

Draw a plane figure which is formed by joining the points: A (–5, 3); B (2,–3) and C (2, 3). What is the name of the figure?

1. Draw a graph on x and y-axes and indicate all the given coordinate points as shown in the following figure:

   

2. By using a ruler, join the coordinate points in the order of A B C A to get a plane figure.

   

Therefore, the resulting plane figure is a triangle.

Note that, steps 1 and 2 are done directly on a graph.