what is the least number. which should be added to 0.0320 to make it a perfect square?	Choose the correct choice from the following choices.
A) 0.0005  B) 0.0004  C) 0.0006  D) 0.0002  E) 0.0001
0.0320+0.0004= 
<gadget id="calculator">0.0320+0.0004</gadget>
<output>0.0324</output>
0.0324   (0.18)^2   ANSWER:0.0004
<result>B</result>
what is the least number. which should be added to 0.0320 to make it a perfect square?