A golf ball has diameter equal to 4.1 cm. Its surface has 150 dimples each of…

PYQ Infosys 2024

A golf ball has diameter equal to 4.1 cm. Its surface has 150 dimples each of radius 2 mm (0.2 cm). Calculate total surface area which is exposed to surroundings assuming that the dimples are hemispherical.

  1. A.

    51.62 cm²

  2. B.

    77.62 cm²

  3. C.

    71.62 cm²

  4. D.

    45.62 cm²

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