There are no 20cent coins. And you can't solve that question with the information given. You need the dimensions of the coins
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1600
0, because a lineal meter has an area of 0
Taking 1 inch to be about 2.5cm, an inch of rain on an area of 1m2 is approximatley 0.025m3, or 25000cm3. That is 25000ml or 25l of water.
No. A millimeter, or mm, is smaller than a meter, or m. A millimeter is actually a thousandth of a meter, so it is MUCH smaller than a meter.
Twice as much as the radius