What is the approximate volume of a tree trunk if the trunk is 12 feet tall with a circumference of 4.5 feet

1. The tree trunk has the shape of a cylinder

2. The volume of a cylinder is base area*height.

3. Volume=  . We have the height, and we need the radius, which can be found using the circumference formula.

4. Circumference = 
     


(feet)

5.  

with  approximately equal to 3.14, 

(feet cubed)

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