Question

Find the sum of interior angles of a polygon of given number of sides by using
Fig. 11.8
formula (n - 2) × 180°,
(i) 12 sides
9 sides
(iii)
22 sides
​

Answer 1

Step-by-step explanation:

• (n-2)×180
• (12-2)×180
• 10×180
• 1800

ii)(n-2)×180

9-2×180

6×180

108

III) (n-2)×180

22-2×180

20×180

3400

hope it works...