The perimeters of two squares are 40 cm and 24 cm. Find the perimeter of a third square whose area is equal to the difference of the areas of the two squares . Choose the correct choice from the following choices
A) 22 cm B) 24 cm C) 32 cm D) 28 cm E) 29 cm
Explanation:   We know perimeter of square = 4(side)   So Side of first square = 40/4= 
<gadget id="calculator">40/4</gadget>
<output>10</output>
10 cm   Side of second square= 24/4= 
<gadget id="calculator">24/4</gadget>
<output>6</output>
6 cm   Area of third Square= 10*10 - 6*6= 
<gadget id="calculator">10*10 - 6*6</gadget>
<output>64</output>
64 cm   So side of third square= 8 [because area of square = side*side]   Perimeter = 4*Side = 4*8= 
<gadget id="calculator">4*8</gadget>
<output>32</output>
32 cm   Answer: Option 32 cm
<result>C</result>
The perimeters of two squares are 40 cm and 24 cm. Find the perimeter of a third square whose area is equal to the difference of the areas of the two squares .