radius *2 = diameter so then plug the radius in... 4*2=8 8 is the diameter of the figure.
The radius is half the diameter. So, if the diameter is 8, then the radius is 4.
8 units; the diameter of a circle is twice its radius.
Volume is 4/3 pi*radius*radius*radius 3.14 times 7 times 7 times 7 times 4 divided by 3= volume 1436.2666666 Surface area is 4 * pi * radius * radius 4 times 3.14 times 7 times 7=surface area 615.44
4 cm radius = Area of 50.26548 sq. cm.
If 4 is the radius, radius squared means to multiply the radius by itself, in this case 4 x 4.
4 is a number. It does not have a centre, not a radius.
Volume = 4/3 * pi * radius * radius * radius Surface Area = 4 * pi * radius * radius
The radius is half of the 4 inch diameter. Therefore, the radius is 2 inches.
1.2 Area = pi X radius^2 So set Area = 4, and figure it out: 4 = pi X radius ^2 4/pi = radius^2
The radius of the circle is 2 units. * * * * * If the area is 4 units, the radius is 1.128 units
Its radius is: 4/2 = 2 cm
Radius of a circle with diameter 4? Radius is half of the diameter, so in this case it would be 2.
when radius = 4 cm area = 3.14*4*4=50.24 cm2
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.
Multiply the radius 2x to get you answer. Example: Say your radius is 4. You multiply that by 2 (4 x 2 = 8)
Radius = 1/2*Diameter Thus, 1/2*8 = 4 Flowerpot has a radius of 4.