Mathematics
OpenStudy (anonymous):

Approximately how many degrees are in the measure of an interior angle of a regular seven sided polygon? 102.9 128.6 180.0 231.4

OpenStudy (anas.p):

To find the sum of interior angles, the formula is $(2n-4)\times90$ here n=7 so $((2\times 7)-4)\times90$$10\times 90$900 is the sum of interior angles. $900\div7$ because no. of sides. 128.57 Answer B