Find the sum of interior angles of a decagon?
- A1620^\circ
- B2520^\circ
- C1800^\circ
- D1440^\circ
Solution & Step-by-step Explanation
The formula for the sum of interior angles of an n-sided polygon is:
Sum=(n−2)×180
∘
A decagon has 10 sides, so n=10.
Sum=(10−2)×180
∘
Sum=8×180
∘
=1440
∘
Sum=(n−2)×180
∘
A decagon has 10 sides, so n=10.
Sum=(10−2)×180
∘
Sum=8×180
∘
=1440
∘