Question

find the sum of interior angles of a polygon of given number of sides by using formula ( n-2)×180°.
1. 12 sides
2. 9 sides
3. 22 sides​

Answer 1

Answer:

{1} 1800sides

{2} 1260 sides

{3} 3600 sides

Step-by-step explanation:

{1} [n-2]*180

[12-2]*180

10*180

1800 sides

{2} [n-2]*180

[9-2]*180

7*180

1260 sides

{3} [n-2]*180

[22-2]*180

20*180

3600 sides

Answer 2

Step-by-step explanation:

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