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Question
What is the sum of all angles of a hexagon?
Options
180°
360°
540°
720°
Solution
720°
Explanation:
Sum of all angles of a n-gon is (n – 2) × 180°.
In hexagon, n = 6,
Therefore the required sum = (6 – 2) × 180°
= 4 × 180°
= 720°
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RELATED QUESTIONS
Examine the table. (Each figure is divided into triangles and the sum of the angles deduced from that.)
| Figure |  |
 |
 |
 |
| Side | 3 | 4 | 5 | 6 |
| Angle sum | 180° |
2 × 180° = (4 − 2) × 180° |
3 × 180° = (5 − 2) × 180° |
4 × 180° = (6 − 2) × 180° |
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