Volume of cone

Find the volume of a right circular cone-shaped building with a height of 9 cm and a radius base of 7 cm.

Result

V =  461.814 cm3

Solution:

h=9 cm r=7 cm  S=π⋅ r2=3.1416⋅ 72≐153.938 cm2 V=S⋅ h/3=153.938⋅ 9/3≐461.8141≐461.814 cm3h=9 \ \text{cm} \ \\ r=7 \ \text{cm} \ \\ \ \\ S=\pi \cdot \ r^2=3.1416 \cdot \ 7^2 \doteq 153.938 \ \text{cm}^2 \ \\ V=S \cdot \ h / 3=153.938 \cdot \ 9 / 3 \doteq 461.8141 \doteq 461.814 \ \text{cm}^3

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