Circumference = C = 28.26 cm
Area = A = 63.585 cm^2
Step-by-step explanation:
Given
Radius = r = 4.5 cm
Circumference:
[tex]C = 2\pi r[/tex]
Putting the values
[tex]C = 2 * 3.14 * 4.5\\= 28.26\ cm[/tex]
Area:
[tex]A = \pi r^2\\= 3.14 * (4.5)^2\\=3.14 * 20.25\\=63.585\ cm^2[/tex]
Hence,
Circumference = C = 28.26 cm
Area = A = 63.585 cm^2
Keywords: Circle, area
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