Answer:
A≈12.57
Step-by-step explanation:
Given that r2= (2cm)2
So we have= π x 22
Which is π x 4
Using non calculator equation
3.14 x 4
That equals to 12.56 cm 2 exact using.
Using calculator equation π x 4
That equals to 12.56637061
Rounding off to two decimal places which is 12.57
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