Question

Find the curved surface area of solid sphere whose radius is 7 cm

Answer 1

Answer:

616 sq. cm

Step-by-step explanation:

We know the formula,

Curved Surface Area = 4 * pie(22/7) * r ^2

                                    = 4 * 22/7 * 7 * 7

                                    =4 * 22 * 7

                                    = 616 sq. cm

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Answer 2

Answer:

Curved surface area of sphere=4/3×22/7×7×7

                                                   =4/3×154

                                                    =205.34 cm²