complete the curved surface area of a hemisphere whose diameter is 5cm ( use fi is 3.14)
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Answer:
308 cm 2
Step-by-step explanation:
Radius=7cm
Height of the cylindrical portion13−7=6cm.
Area of a Curved surface of cylindrical portion is,
=2πrh
=2×722×7×6
=264cm2
Area of a curved of hemispherical portion is
=2πr2
=2×722×7×7
=308cm2
∴ total surface area is =308+264=572cm2.
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