If x represents the sum of the interior angles of a triangle and y represents the sum of the interior angles of a regular pentagon, then the addition x and y is equal to the sum of the interior angles of what geometric shape?	Choose one: A) Hexagon B) Square C) Rhombus D) Trapezoid E) Pentagon
Sum of angles of Triangle= 180*(3-2)= 
<gadget id="calculator">180*(3-2)</gadget>
<output>180</output>
180=&gt; using formula sum of angles of polygon = 180*(n-2) where n is the number of sides in a polygon   Sum of angles in Pentagon = 180*(5-2)= 
<gadget id="calculator">180*(5-2)</gadget>
<output>540</output>
540   Difference= 180 +540= 
<gadget id="calculator">180 +540</gadget>
<output>720</output>
720=&gt; Hexagon   hence (Hexagon).
<result>A</result>
If x represents the sum of the interior angles of a triangle and y represents the sum of the interior angles of a regular pentagon, then the addition x and y is equal to the sum of the interior angles of what geometric shape?