Answer:
Cylinder H has the greater volume.
Explanation:
Recall that the volume of a cylinder is given by:
![\displaystyle V=\pi r^2h](https://img.qammunity.org/2022/formulas/mathematics/college/4sxglz07b0aq7owy8vrg55r7yp9pgx1ik9.png)
Where r is the radius and h is the height.
Cylinder H has a radius of 4.5 meters and a height of 3 meters. Thus, its volume is:
![\displaystyle \begin{aligned} V&=\pi(4.5)^2(3)\\&=60.75\pi \\&\approx190.8518\text{ m}^3\end{aligned}](https://img.qammunity.org/2022/formulas/mathematics/high-school/txg5n02ftm92d6d916h8gpnyugldwo3l07.png)
Cylinder J has a diameter of 7 meters and a height of 4.5 meters. The radius is half the diameter, so Cylinder J's radius is 3.5 meters. Thus, its volume is:
![\displaystyle \begin{aligned}V&=\pi(3.5)^2(4.5)\\&=55.125\pi \\&\approx 173.1803\text{ m}^3\end{aligned}](https://img.qammunity.org/2022/formulas/mathematics/high-school/25gmzvml5te9a837cbshsy7j3x262fraie.png)
Thus, Cylinder H has the greater volume.