find the ratio of total surface area of a sphere and a solid hemisphere of same radius
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T. S. A of Sphere = 4* pi* r^2 .. 1.
T.S.A of hemisphere = 3 * pi * r^2 .. 2.
Divide 1. By 2.
= T. S. A of Sphere / T.S.A of hemisphere
= 4* pi* r^2/ 3 * pi * r^2
= 4/3.
Hope it's helpful to u.
T.S.A of hemisphere = 3 * pi * r^2 .. 2.
Divide 1. By 2.
= T. S. A of Sphere / T.S.A of hemisphere
= 4* pi* r^2/ 3 * pi * r^2
= 4/3.
Hope it's helpful to u.
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