The circumference of any circle is (pi) x (the diameter of the circle).
The problem gives you both numbers, so all you have to do is multiply them.
Circumference = (pi) x (diameter) = (3.14) x (21cm) = <em>65.94 cm .</em>
72 is the answer you are looking for here
Answer:
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Step-by-step explanation:
The second to last one, looks like a really tall speed bump
Answer:
1,000,000,000 + 25,000,000 + 4,000 + 32
Step-by-step explanation: