Question

How do you do this and what are the answers

Answer 1

I can answer 1 to 4...
The area of a circle can be found by
`\pi r^(2)`. Reminder:
`\pi = 3.14` (usually used when finding out the area of a circle)

1.
`4^(2) = 16`

`\pi *16` or
`3.14 * 16 = 50.24`

`50.24/4=12.56`

2.
`6^(2) = 36`

`\pi *36` or
`3.14 * 36 = 113.04`

`113.04/10=11.304`

(Not really sure if this is correct) 3.
`2^(2)=4`

`\pi *4` or
`3.14 * 4`

`12.56/2.66666667=11.70999999`

4.
`6^(2)=36`

`\pi *36= 113.04`

`113.04/6=18.84`