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The surface area of a sphere can be found with the formula 4pi * r2. Assuming the hemisphere is exactly half of a sphere, the surface area of a hemisphere can be found using the formula A = 2pi * r2 + pi * r2
Which can be written as A = pi(3r2)
942cm/pi = 3r2
314cm/pi = r2
r = 10cm (approximately)
The radius of the hemisphere is approximately 10cm.
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The surface are of a cylinder whose radius is 10cm and height is 20cm is 1884.96cm2
How do you find the total surface area of a hemisphere whose diameter is 8 inches?
Calculate the radius (it is half the diameter).Use the formula for a sphere: area = 4 x pi x radius2.Since a hemisphere is half a sphere, divide this result by 2.Question:Do you mean the surface area to include the flat face of the hemisphere?If so then follow the above instructions and add pi*42 to your answer which will give you the complete surface area of the hemisphere.
What is the surface area of a cylinder whose radius is 2Cm and height is 8Cm?
A cylinder whose radius is 2cm and height is 8cm has a total surface area of approximately 125.66cm2 {ADDED} To explain that further, the formula is pi*r^2 X h where r is the radius and h the height.
