Question

find the sum of interior angles of polygon of given number of sides by using formula (n-2) × 180°​

Answer 1

Answer:

$(12 - 2) \times 180 \\ 10 \times 180 = 1800$

$(9 - 2) \times 180 \\ 7 \times 180 = 1260$

$(22 - 2) \times 180 \\ 20 \times 180 = 3600$

Answer 2

Answer:

1800:)1260:)36:) hope this will help you