Step-by-step explanation:
a)
diameter:20cm
circumference: 62.83 cm
area: 314.15 cm^2
b)
radius:7.49 cm
diameter:15 cm
circumference: 47.1 cm
area: 176.24 cm^2
c)
Radius: 60cm
diameter:120 cm
circumference: 376.99cm
area: 11309.7cm^2
and so on....
[tex]area = \pi \: {radius}^{2} \\ \\ circumference = 2\pi \: radius[/tex]
i don't have time to evaluate the whole table.
