What is the total measure of all interior angles in a ten-sided polygon?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 1440°.
Sum of interior angles for n-sided polygon = (n – 2) × 180°
For n = 10: (10 – 2) × 180° = 8 × 180° = 1440°