Question

A glass paperweight is shown below.

Answer 1

Answer:

$A=190.75\ cm^2$

Step-by-step explanation:

The diameter of a hemisphere, d = 9 cm

Radius, r = 4.5 cm

We need to find the surface area of the paperweight. The formula for the surface area of a hemisphere is given by :

$A=3\pi r^2\\\\A=3\times 3.14\times (4.5)^2\\\\A=190.75\ cm^2$

So, the surface area of the paperweight is $190.75\ cm^2$.