The circumference of a redwood tree trunk is 20π ft, and it is 100 ft tall. What is the approximate volume of the redwood tree trunk?? 1,000π ft3 10,000π ft3 4,000π ft3 40,000π ft3

10,000π ft³

Step-by-step explanation:

Tree trunk is in the shape of cylinder.

Circumference = 20π ft

                 2πr = 20π

h = 100 ft

Volume =πr²h

            = π * 10 * 10 *100

            = 10,000π ft³

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

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