Question

Ellen's greenhouse is in the shape of a hemisphere.The diameter ofnnthe floor is 18 feet.What is the approximate volume of the green house?

Answer 1

Volume of a sphere = (4/3) (pi) r^3

Volume of a semi sphere = (2/3) (pi) r^3

The diameter of the floor is 18 feet, so the radius is 9 feet

`V\text{ = }(2)/(3)\pi\cdot9^3=(2)/(3)\pi\cdot729\text{ =}(1458)/(3)\pi=486\pi=1526.8140`

Answer:

V = 1526.8140 cubic feet

By approximation, first option 1,527 cubic feet