1. **Problem:** Find the volume of a cylinder with radius 6 cm and height 5 cm, using $\pi = 3.14$. 2. **Formula:** The volume $V$ of a cylinder is given by $$V = \pi r^2 h$$ where $r$ is the radius and $h$ is the height. 3. **Calculation:** $$V = 3.14 \times 6^2 \times 5$$ $$= 3.14 \times 36 \times 5$$ $$= 3.14 \times 180$$ $$= 565.2$$ 4. **Answer:** The volume is $565.2$ cubic centimeters. --- 1. **Problem:** Find the volume of a cylinder with radius 4 m and height 8 m, using $\pi = 3.14$. 2. **Formula:** Same as above. 3. **Calculation:** $$V = 3.14 \times 4^2 \times 8$$ $$= 3.14 \times 16 \times 8$$ $$= 3.14 \times 128$$ $$= 401.92$$ 4. **Answer:** The volume is $401.92$ cubic meters.