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
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
A) 3
B) 87
C) 42
D) 767
E) 27
Explanation:   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) 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
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