Question

Surface area of hemisphere with diameter of 18

Answer 1

In terms of pi: 243
`\pi`

in decimal form: 763.407

Explanation:

to find surface area of a hemisphere the formula is,

`3\pi r^(2)`

diameter (d) = 18

radius = d / 2 = 18 / 2

radius = 9

`3\pi (9)^(2) \\3\pi (81)\\243\pi \\OR\\763.407`