1. **Problem statement:** We have two containers: one cylindrical and one spherical. Both have the same volume. The cylinder has a height of 50 cm and a radius of 11 cm. We need to find the exact radius of the spherical container.
2. **Formulas:**
- Volume of a cylinder: $$V_{cyl} = \pi r^2 h$$
- Volume of a sphere: $$V_{sph} = \frac{4}{3} \pi R^3$$
3. **Given:**
- Cylinder radius $r = 11$ cm
- Cylinder height $h = 50$ cm
- Sphere radius $R = ?$
4. **Step 1: Calculate the volume of the cylinder:**
$$V_{cyl} = \pi \times 11^2 \times 50 = \pi \times 121 \times 50 = 6050 \pi$$
5. **Step 2: Set the volumes equal:**
Since volumes are equal,
$$6050 \pi = \frac{4}{3} \pi R^3$$
6. **Step 3: Simplify and solve for $R^3$:**
Divide both sides by $\pi$:
$$6050 = \frac{4}{3} R^3$$
Multiply both sides by $\frac{3}{4}$:
$$R^3 = 6050 \times \frac{3}{4} = 4537.5$$
7. **Step 4: Find $R$ by taking the cube root:**
$$R = \sqrt[3]{4537.5}$$
8. **Final answer:**
The exact radius of the spherical container is $$R = \sqrt[3]{4537.5}$$ cm.
Cylinder Sphere Radius
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