Respuesta :

gcantiga44

Answer:

For Area,

π r ²  (pi × radius squared)

For Circumference,

2π r  (2 × pi × radius)

OR

π d  (pi × diameter)

Note: pi could be 3.14

JenzAr
Area is pi r squared.

Twinkle twinkle little star, circumference equals 2 Pi r

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