two hundred ninety-six ten thousandths
The light of the bulb falls on the poster which is considered a colored surface that absorbs the visible light "that consists of 7 spectrum colours" and reflect it's own color
The sum of the interior angles of the polygon = (n - 2) x 180 .
(n - 2) x 180 = (n x 150)
180n - 360 = 150n
Add 360 to each side:
180n = 150n + 360
Subtract 150n from each side:
30n = 360
Divide each side by 30 :
<u>n = 12</u>
