**$\mathbf{radius}\mathbf{}\mathbf{=}\mathbf{}\frac{\mathbf{diameter}}{\mathbf{2}}\phantom{\rule{0ex}{0ex}}\mathbf{radius}\mathbf{}\mathbf{=}\mathbf{}\frac{\mathbf{5}\mathbf{.}\mathbf{5}\mathbf{}\mathbf{cm}}{\mathbf{2}}$**

**radius = 2.75 cm**

A spherical ball of lead has a diameter of 5.5 cm . What is the mass of the sphere if lead has a density of 11.34 g/cm^{3}? (The volume of a sphere is r^{3} where r is the radius.)

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