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now it’s time to practice on your own what is the volume of the object …

Question

now it’s time to practice on your own
what is the volume of the object generated by rotating the triangle about the vertical axis?
3 in.
14 in.
axis
express your answer in terms of \\(\pi\\).
enter your answer in the box.
volume = \\(\square\\) in\\(^3\\)

Explanation:

Step1: Identify the shape after rotation

When a right triangle is rotated about one of its legs (the vertical axis here), it forms a cone. The radius \( r \) of the cone is the length of the horizontal side of the triangle, and the height \( h \) is the length of the vertical side. From the diagram, \( r = 3 \) in and \( h = 14 \) in.

Step2: Recall the formula for the volume of a cone

The volume \( V \) of a cone is given by the formula \( V=\frac{1}{3}\pi r^{2}h \).

Step3: Substitute the values of \( r \) and \( h \) into the formula

Substitute \( r = 3 \) and \( h = 14 \) into the formula:

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Answer:

\( 42\pi \)