The sum of interior angles of a regular polygon is 1080°. How many sides does it have?
A6
B8
C10
D12
Explanation
Sum = (n – 2) * 180° = 1080° => n – 2 = 1080 / 180 = 6 => n = 8.
Exam Relevance
- Topic: Geometry & Mensuration
- Subtopic: Polygons
No Comments