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What is the surface area of a cylinder with end that are half sphere with a radius of 4 and height of 12?
If the radius of the hemispheres is 4, then that leave 4 units for the length if the straight part of the cylinder. Total surface area = surface area of 1/2 sphere of radius 4 + lateral surface area of cylinder of radius 4 and height 4 + surface area of 1/2 sphere of radius 4. = surface area of sphere of radius 4 + lateral surface area of cylinder of radius 4 = 4*3*pi*43 + pi*42*4 = 469.1 cubic units.
What happens to the surface area of a sphere if its radius is doubled?
If the radius of a sphere is doubled, the surface area increases by (2)2 = 4 times, and the volume increases by (2)3 = 8 times.
What is the surface area of a cube that is 2 cm x 2cm x 2 cm?
A cube has 6 faces each face is area 2x2 = 4 square cm surface area = 6 x 4 = 24 sq cm
How do I Find the area using the radius?
of a circle: pi*(r^2) of a sphere: (surface area) 4*pi*(r^2) of a hypersphere: ... ?
What is the surface area of a cricket ball with a 22cm circumference?
radius = 22/(2*pi) = 3.501408748 Surface area = 4*pi*3.5014087482 = 154.0619849 square cm
