Each of the interior angles of a regular polygon is 140°. Calculate the sum of all the interior angles of the polygon. by Sunday | Jan 6 | Mathematics WAEC | 0 comments A. 1080° B. 1260° C. 2160° D. 1800° Correct Answer: Option B B. 1260° Users Also Read These:Calculate the volume of the regular…The sum total of all the roles an organism plays in…In a particular year, the sum of the value-added in…The sum of N80,000 is deposited in a bank and the…"Sum of all forces acting on a body is zero." This…