It is: 4/3*pi*3 cubed = 36*pi cubic units
Volume of the sphere: 4/3*pi*4 cubed = 268.083 cubic units rounded to 3 decimal place
radius is a scalar quantity, it can not have a negative value.
Surface area of the sphere: 4*pi*52 = 100*pi square units
It is 314.159 or 100*pi square units.
The volume is proportiuo9nal to the cube of the radius, so doubling the radiuscauses the volume to increase to (2)3= 8 times its original value.
No one because the volume of a sphere is 4/3*pi*radius cubed but it is only an estimation because the exact value of pi has never been found.
4/3*pi*radius3 = 523.6 Making the radius the subject of the above gives it a value of 5.000003897 or about 5 cm
To find the volume we must first work out what the radius is: 2*pi*radius = 929 Divide both sides by 2*pi to find the value of the radius: radius = 147.8549421 volume = pi*147.85494212*6 volume = 412071.7235 cubic units
Volume of a sphere equals 4 thirds times pi times the radius cubed. The radius here is 2 meters because the radius is one half the diameter. So plugging in the radius yields an exact result of 32pi ----- cubic meters 3 Or an equally correct but less precise value of 33.5103 cubic meters.
For the question to have any meaning, the volume should be in cubic metres, not metres. The surface area of a sphere of radius r is 4*pi*r*r and its volume is 4/3*pi*r*r*r. Use the second equation to find the value of the radius, r and then use that value in the first equation to calculate the surface area.
First we have to find the radius: 4*pi*radius2 = 64*pi Divide both sides by 4*pi and then square root both sides to find the value of the radius: radius = 4 cm Volume of a sphere = 4/3*pi*radius3 Volume = 268.0825731 or 268 cm3 to the nearest cubic cm
Surface area: 4*pi*radius2 = 803.84 Making the radius the subject of the above gives it a value of 7.9979719132 or about 8 units in length. Check: 4*pi*7.99797191322 = 803.84 square units