Four equal circles are described about the four corners of a square so that each touches two of the others. If a side of the square is 14 cm, then the area enclosed between the circumferences of the circles is :	Select the correct option.
A) 24 cm2 B) 42 cm2 C) 154 cm2 D) 196 cm2 E) None of these
The shaded area gives the required region.   Area of the shaded region = Area of the square – area of four quadrants of the circles   = (14)2 - 4 × 1⁄4π(7)2   = 196 - 22⁄7 × 49 = 196 - 154= 
<gadget id="calculator">196 - 154</gadget>
<output>42</output>
42 cm2   Answer 42 cm2
<result>B</result>
Four equal circles are described about the four corners of a square so that each touches two of the others. If a side of the square is 14 cm, then the area enclosed between the circumferences of the circles is :