Question

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the radius of a cylindrical water tank is 4 ft, and its height is 7 ft. what is the volume of the tank? use the value 3.14 for π, and round your answer to the nearest whole number. be sure to include the correct unit in your answer.

Explanation:

Step1: Recall volume formula

The volume formula for a cylinder is $V = \pi r^{2}h$, where $r$ is the radius and $h$ is the height.

Step2: Substitute given values

Given $r = 4$ ft and $h=7$ ft, and $\pi = 3.14$. Substitute into the formula: $V=3.14\times4^{2}\times7$.

Step3: Calculate $4^{2}$

$4^{2}=16$, so $V = 3.14\times16\times7$.

Step4: Multiply 3.14 and 16

$3.14\times16 = 50.24$, then $V=50.24\times7$.

Step5: Multiply 50.24 and 7

$50.24\times7 = 351.68$.

Step6: Round to nearest whole number

Rounding 351.68 to the nearest whole number gives 352.

Answer:

352 ft³