Question

(Geometry) Find the volume and Surface Area. I will draw a picture.

Answer 1

ok... so the 2 shapes have the same radius r = 9.4

and the cylinder has a height h = 24

you need to find the volume of the hemisphere and cylinder

Hemisphere \[V = \frac{1}{2} \times \frac{4}{3} \pi r^3\]

cylinder

\[V = \pi r^2h\]

so add the 2 volumes together.

Surface Area

Hemisphere: \[SA = \frac{1}{2} \times 4\pi r^2\]

cylinder

\[SA = 2\pi r h + \pi r^2\]

The cylinder includes the area of the circular bas on which it sits...

so substitute you values and calculate away

Answer 2

Thank you! I will use this right now.