Given a cylinder with the radius of 2cm and the height of 7cm. Find the volume of this solid.
Take π = 22/7
The picture below shows the cylinder with the radius (R) of 2cm, and the height (H) of 7cm.
Since R and H have the same unit, we can just calculate the volume of this cylinder as shown:
Now, the calculated number 88, is meaningless unless we include the unit for it. Since R and H units are in cm, the unit for volume will be cm3. Hence:
Clearly, the answer is D.
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