Question 112333
YOU ARE DESCRIBING A SQUARE BUT USING A CIRCLE FORMULA.
IF THE SQUARE HAS A SIDE OF 3 CM THEN THE AREA IS:
S^2=AREA OR:
3^2=9 CM^2
IF THE NEW SIDE IS 3.2 THEN:
3.2^2=10.24 CM^2 
THUS THE INCREASE IS:
10.24-9=1.24 CM^2 INCREASE IN AREA.