ACTIVIDAD 2.7.

Drawing a square and an octagon inside a circle

Follow these steps to draw a square and an octagon inside a circle:

1. Use a set square to mark the diameter of the circle (1-2).
2. Again using the set square, cut across the centre of 1-2 to mark another diameter (3-4) and form four quarter circles.
3. Now use the set square to bisect each of the four quarter circles, drawing lines from circumference to circumference.
4. Your circle is now divided into 8 sections. Join up the ends of each of the eight sections to form the 8 sides of the octagon, just inside the circumference of the circle. To draw the square, join up the ends of every other section, forming 4 sides instead of 8.

Activities:

Draw a square and an octagon inside the circle.

Materials:

A pencil, a compass, a ruler, a set square and felt-tipped pens.

Watch how to do it  HERE

Download the printable paper  HERE