The perimeters of 2 squares are 60cm and 48cm. Find the perimeter of a third square whose area is equal to the difference of the areas of the two squares?
Pick one:
A) 20cm	B) 28cm	C) 36cm	D) 48cm	E) 40cm
Side of the 1st square = 60/4= 
<gadget id="calculator">60/4</gadget>
<output>15</output>
15cm   Side of the 2nd square= 48/4= 
<gadget id="calculator">48/4</gadget>
<output>12</output>
12cm   Area of the 3rd square= 15^2 - 12^2 = 81cm^2   Side of the 3rd square = 9cm   Required perimeter = 9*4= 
<gadget id="calculator">9*4</gadget>
<output>36</output>
36cm   Answer is 36cm
<result>C</result>
The perimeters of 2 squares are 60cm and 48cm. Find the perimeter of a third square whose area is equal to the difference of the areas of the two squares?