1. Find the size of each exterior angle of the following regular polygons.
(c) decagon
(b) octagon
(a) heptagon
2. Each interior angle of a regular polygon is 160°.
(a) What is the size of each exterior angle?
(b) How many sides does the polygon have?
3. Calculate the number of sides of a regular polygon whose exterior angle is:
(a) 15°
(b) 36°
(c) 45°
(d) 18
4. Find the number of sides of the regular polygons having the following
interior angles:
(a) 168°
(b) 179°
5. Calculate the number of sides of a regular polygon whose interior angle is
three times the size of its exterior angle.
6. For a regular polygon that has 15 sides calculate:
(a) the size of the exterior angle
(b) the size of the interior angle.
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