If the sum of the interior angles of a regular polygon measures up to 900 degrees, then how many sides does the polygon have? Pick one
A) 10 B) 16 C) 12 D) 11 E) 7
one of the interior angle = 180 - 360/n   sum of the interior angles is = n (180 - 360/n)   given   n(180 - 360/n)=900   180n - 360 = 1260   180n = 1260   n = 1260/180= 
<gadget id="calculator">1260/180</gadget>
<output>7</output>
7   ANSW7R:7
<result>E</result>
If the sum of the interior angles of a regular polygon measures up to 900 degrees, then how many sides does the polygon have?