6.6 cm3 ÷ 1.00 cm2 = cm

Divide the values: 6.6 ÷ 1.00 = 6.6. For division, the result should have as many significant figures as the value with the fewest; 6.6 has two significant figures, while 1.00 has three. So the answer is 6.6 cm, choice B.

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