Four circular cardboard pieces, each of radius 7cm are placed in such a way that each piece touches two other pieces. The area of the space encosed by the four pieces is
Choose the correct choice from the following answers.
A) 12	B) 32	C) 42	D) 52	E) 58
required area = 14*14 - (4 * 1/4 * 22/7 * 7 *7) sq cm   = 196 - 154= 
<gadget id="calculator">196 - 154</gadget>
<output>42</output>
42 sq cm. Answer: 42
<result>C</result>
Four circular cardboard pieces, each of radius 7cm are placed in such a way that each piece touches two other pieces. The area of the space encosed by the four pieces is