Geometry and TrigonometryHardExterior angle of a twelve-sided regular polygon
Geometry and Trigonometry practice question
A regular polygon has 12 sides. What is the measure, in degrees, of one of its exterior angles?
Answer: 30
The exterior angles of any polygon sum to 360, and 360 ÷ 12 = 30.
Common wrong answers
- If you answered 12
- 12 copies the number of sides.
- If you answered 15
- 15 halves 30.
- If you answered 150
- 150 is the interior angle.
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