The volume of a hemisphere is
2.25 /pie cm^3 . What is the total surface area of the hemisphere ?
plzz explanation needed
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Given Volume of a hemisphere = 2.25pi.
We know that Volume of the hemisphere = 2/3pir^3.
2r^3 = 2.25 * 3
2r^3 = 6.75
r^3 = 6.75/2
r^3 = 3.375
r = 1.5
We know that Total surface area of the hemisphere = 3pir^2
= 3 * pi * (1.5)^2
= 3 * pi * 1.5 * 1.5
= 3 * pi * 2.25
= 6.75pi.
Therefore the total surface area of the hemisphere = 6.75pi.
Hope this helps!
We know that Volume of the hemisphere = 2/3pir^3.
2r^3 = 2.25 * 3
2r^3 = 6.75
r^3 = 6.75/2
r^3 = 3.375
r = 1.5
We know that Total surface area of the hemisphere = 3pir^2
= 3 * pi * (1.5)^2
= 3 * pi * 1.5 * 1.5
= 3 * pi * 2.25
= 6.75pi.
Therefore the total surface area of the hemisphere = 6.75pi.
Hope this helps!
siddhartharao77:
Gud luck!
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Hi,
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Please see the attached file!
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