If x represents the sum of the interior angles of a square and y represents the sum of the interior angles of a regular pentagon, then the difference between x and y is equal to the sum of the interior angles of what geometric shape?
Choose the correct choice from the following answers:
A) Triangle  B) Square  C) Rhombus  D) Trapezoid  E) Pentagon
Sum of angles of square = 180*(4-2)= 
<gadget id="calculator">180*(4-2)</gadget>
<output>360</output>
360=&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= 540 - 360= 
<gadget id="calculator">540 - 360</gadget>
<output>180</output>
180=&gt; Triangle   hence (Triangle).
<result>A</result>
If x represents the sum of the interior angles of a square and y represents the sum of the interior angles of a regular pentagon, then the difference between x and y is equal to the sum of the interior angles of what geometric shape?