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is the formula for volume of a sphere.Now just plug in 3 for r. You should get 36pi
The curved surface area is 89.76527 units2 and the total surface area is 134.6479 units2
A=pi*radius^2 so 12/2=6 ==> radius so 36pi square feet is the area
area = πr2 ⇒ r = √(area/π) ⇒ r = √(36π/π) = √36 = 6 circumference = 2πr = 2 x π x 6 = 12π
A = pi * r^2 A = pi * 6^2 A = 36pi If you are using 3.14 for pi, then ANS : D.) 113.04 cm^2