What is the volume of a cone that has a height of 7 mm and a radius of 3 mm?


Use 3.14 to approximate pi and express your answer in hundredths.


mm3

Verified Answer :

The formula for the volume of a cone is (1/3)area of the base height. The base is a circle, whose area is pi times radius^2. Here this is pi (r^2) = 3.14(3mm)^2 = 28.26 mm^2. And so the volume is (1/3) 28.26 mm^2 7mm = 65.94 mm^3. I recommend that you find the most common formulas of the geometrical figures and make a flashcard that you can use at any moment.