Carol H. answered • 10/25/17

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**Cone: V = (1/3)πr**

^{2}H**V = (1/3)π(3)**

^{2}(10)**V = (1/3)π(90)**

**V = 30π**

**Hemisphere: V = (1/2)(4/3)πr**

^{3}**V = (2/3)π(6)**

^{3}**V = (2/3)π(216)**

**V = 144π**

**Total Volume = 30π + 144π = 174π**

**V ≈ 546.64 units**

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