I can answer 1 to 4...
The area of a circle can be found by [tex] \pi r^{2}[/tex]. Reminder: [tex] \pi = 3.14[/tex] (usually used when finding out the area of a circle)
1. [tex]4^{2} = 16[/tex]
[tex] \pi *16[/tex] or [tex] 3.14 * 16 = 50.24[/tex]
[tex] 50.24/4=12.56[/tex]
2. [tex]6^{2} = 36[/tex]
[tex] \pi *36[/tex] or [tex]3.14 * 36 = 113.04[/tex]
[tex]113.04/10=11.304[/tex]
(Not really sure if this is correct) 3. [tex]2^{2}=4[/tex]
[tex] \pi *4[/tex] or [tex]3.14 * 4[/tex]
[tex]12.56/2.66666667=11.70999999[/tex]
4. [tex]6^{2}=36[/tex]
[tex] \pi *36= 113.04[/tex]
[tex]113.04/6=18.84[/tex]
