Question

CSA Formula of sphere​

Answer 1

Answer:

The radius 'r' of a cylinder is the radius of its base. Now, the area of the rectangle = length × breadth. 2πr is the circumference of the circle and h is the height. Area of the curved surface will be = 2πr × h = 2πrh.

Answer 2

Step-by-step explanation:

CSA of sphere is 4πr²

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