Calculate \( r^2 \): \( 5^2 = 25 \).
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- A cylindrical tank with a radius of 5 meters and a height of 10 meters is filled with water. Calculate the volume of water in the tank in cubic meters using the formula for the volume of a cylinder \( V = \pi r^2 h \).
- The radius \( r \) is 5 meters, and the height \( h \) is 10 meters.
- Plug in the values: \( V = \pi (5^2)(10) \).
- Multiply by the height: \( 25 \times 10 = 250 \).
- Multiply by \( \pi \): \( V = 250\pi \).
- Using \( \pi \approx 3.14159 \), the volume is approximately \( 250 \times 3.14159 = 785.3975 \).
