Calculation 29971

Cylinder height and radius calculation
The rectangle ABCD | AB | is given = 8 cm, | BC | = 4 cm. Determine the height and radius of the cylinder, which is created by rotating the rectangle around the line AB.

Correct answer:

h =  8 cm
r =  4 cm
V =  402.1239 cm³

Step-by-step explanation:

$$\begin{gathered} a=8\text{cm} \\ b=4\text{cm} \\ h=a=8=8\text{cm} \end{gathered}$$

$r=b=4=4\text{cm}$

$V=\pi \cdot r^2\cdot h=3.1416\cdot 4^2\cdot 8=402.1239{\text{cm}}^3$

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