Question

What total surface area of circle

Answer 1

The formula for the area of that circle is A = π_r_2. Substituting the known value of r into the equation gives you A = π(22) = π(4). Substituting the accepted value of 3.14 for π, you have A = 4 × 3.14, or approximately 12.57.

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Answer 2

Answer:

sphere total surface area is 4πrcube

and Circle total surface area is πr2