a cube is surmounted by half cylinder if side of cube is 14 cm and plane faces of cube and half cylinder overlap then volume of the complete solid is
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A cubical block of side 7 cm is surmounted by a hemisphere of diameter equal to the side of the cube.Find the surface area of the solid.
The greatest diameter=side of the cube=7cm.
The radius of the hemisphere =3.5cm.
Now,
The Surface Area of Solid=Surface Area of Cube - Surface Area of Base Hemisphere + Curve Surface Area of Hemisphere
Surface Area of Cube
=6×side
2
=6×7×7
=294sq cm
Surface Area of Base of Hemisphere is,
=πr
2
=
7
22
×3.5
2
=38.5cm
2
Curved Surface Area of Hemisphere is,
=2×38.5
=77sq cm
∴ total Surface Area is =294−38.5+77
=332.5sq cm.
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Step-by-step explanation:
इन द गिवन इक्वेशन 3 आउट ऑफ फॉर ऑप्शन आर द सेम इन वन वे अलसो फ्रॉम corp.of संडे डस नॉट बिलॉन्ग टू द ग्रुप इन
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