Sphere and Hemisphere
SPHERE
A Sphere is a three-dimensional round solid figure with every point on its surface equidistant from its centre.
Diameter (d) = 2r
Surface area(S) = 4 Ï€ r²
Volume(V) = 4/3 π r3
HEMISPHERE
Hemisphere means half of a sphere.
Lateral Surface area = 2 Ï€ r²
Total Surface area(S) = 3 Ï€ r²
Volume(V) = 2/3 π r3
QMaths Official Online Test Series
Sphere and Hemisphere
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