Question

I want to paint all three walls of the kitchen. One was a half cylinder. I want to paint the walls only not the ceiling. The walls are 9-foot high how many square feet will I be painting round to the nearest tenth ​

Answer 1

`490.9\ ft^(2)`

Explanation:

we know that

The total area is equal to

`A=10(h)+2\pi r(h)+10(h)`

we have

`h=9\ ft`

`r=5.5\ ft`

`\pi=3.14`

substitute

`A=10(9)+2(3.14)(5.5)(9)+10(9)`

`A=490.9\ ft^(2)`