The two numbers are very near 7200 and 300. The sum of those is a good estimate of your sum:
... 7200 + 300 = 7500
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If you're taught methods of addition that include "make a ten" or "make a hundred", you know you can "borrow" a 1 from 7203 (making it 7202) and loan that 1 to 299 to make it 300. Now, you know your sum is exactly 7202+300 = 7502, with no estimation necessary.
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<u><em>The volume of a cylinder is pi * r^2 * h. It's a circle times the height. </em></u>
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<u><em>The volume of a cone is (1/3) * pi * r^2 * h. So it is one third of the volume of a cylinder with the same dimensions. </em></u>
This transformation is called a rotation.
Answer:
30
Step-by-step explanation: