Page 47 - Key Stage 3 Geometry

9. Using a colour pen draw lines connecting the arc

intersection points along the circumference.

When you have drawn all seven lines, you have
created your heptagon.

Now you have drawn a regular heptagon, measure an

internal angle using your protractor. It should be
o
128.6 . Label your drawing, ‘My regular heptagon –
DATE’

Exercise 3.6: A Regular Octagon in a Circle
An octagon is an eight-sided figure. Do the following:

1. Draw a circle of radius 6 cm on a sheet of A4

paper.
2. Draw a vertical diameter.

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