The total surface area of a sphere when the radius is 4 equals 201.1 units2
That is correct because the surface area of a sphere is: 4*pi*radius squared
If its radius is 6, then the surface area of the sphere is: 4*pi*6*6 = 144*pi square units.
The surface area of every sphere is (4 pi) times (the radius squared).Knowing that, you can find the surface area of not only the one you'reasking about right now, but of every sphere that ever was, is, or will be !
The surface area of a 12-inch diameter sphere is 452.39 square inches.The formula for surface area of a sphere is 4*pi*r2 where r=radius
The total surface area of a sphere when the radius is 4 equals 201.1 units2
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.
No, if the radius of a sphere doubles, its surface area increases by a factor of 4, not simply doubling. The surface area of a sphere is proportional to the square of the radius.
Surface area of a sphere = 4*pi*radius2 For a spherical shell, surface area = surface area of outer sphere - surface area of inner sphere = 4*pi*(outer radius)2 - 4*pi*(inner radius)2 = 4*pi*[ (outer radius)2 - (inner radius)2 ]
That is correct because the surface area of a sphere is: 4*pi*radius squared
Surface area of a sphere with radius r = 4(pi)r2
The surface area of a sphere with radius 4 is about 201 units2
Surface area of a sphere = 4*pi*radius squared
The surface area of any sphere is (4 pi) x (radius)2 So the surface area of this particular sphere is (4 pi) x (10)2 .
If the surface area of the sphere is 4 m2, the radius is 0.5642 metres, approx.
The surface area is 201.1 units2
The area of a sphere is A=4*3.14 * r^2. Thus the area varies as the square of the radius. If the surface area is increased by a factor of 4, then the radius will have to increase by the square root of 4 which is 2.