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When I was in the sixth grade, I took a math electronic textbook.
The diameter of the round dining table top is 2 meters. What's its circumference? How many square meters is its area? If a person needs a table with a width of 0.5m to eat, how many people can sit at this table?

Perimeter =πd Area: Radius: 2÷2= 1

3. 14×2 s=πR?

=6.28 (m) 3. 14× 1?

=3. 14 (m2)

How many people can be counted by the circumference: 6.28÷0.5≈ 12 or 13 (people).