Answer: 1440 degres
Step-by-step explanation: Each interior angle will be 180–36 = 144 deg. Alternatively, the sum of the interior angles of a regular 10-sided polygon = (n-2)*180 = (10–2)*180 = 8*180 = 1440, so each interior angle = 1440/10 = 144 deg. A 10-sided polygon has all its angles equal.
