Draw a line from the end of the line through the dot so it crosses the other side. Extend the lines if you need to. Mark this angle 50°. Image caption, Well done! You've constructed a triangle ...

Use a pen to draw a dot where the vertical lines meet ... ends of the line to the dot – you now have a regular equilateral triangle.

Learn to draw your own by following our step-by-step guide. 1. In pencil, draw a triangle, a circle and a rectangle. You might find it helpful to use our shapes template PDF (189KB) as a guide. 2.