2 x pi x radius = circumfrance
2 x pi x radius = 29
29/ 2pi = radius
radius = 4.62 (3 sig.fig.)
4 x pi x radius^2 = Surface area of sphere
12.56 x radius^2 = Surface area of sphere
12.56 x 4.62^2 = Surface area of sphere
268 cm2 (3 sig.fig)
you divide the surface area by the circumference.
S = C2/pi where S is the surface area, C is the circumference.
Surface area = 53.794 units2
Entire surface area of a cylinder = (2*pi*radius^2)+(circumference*height) If you are given the circumference then radius = circumference/2*pi
The approximate surface area of a sphere with circumference 37.68km is 452km
you divide the surface area by the circumference.
First find the radius by dividing 23 by 2*pi which works out as 3.660563691 Surface area of the sphere = 4*pi*3.6605636912 = 168.3859298 or about 168 square mm
S = C2/pi where S is the surface area, C is the circumference.
Surface area = 53.794 units2
First find the radius by dividing 19 by 2*pi which is 3.023943919 cm Surface area of a sphere (the ball) = 4*pi*radius2 Surface area = 4*pi*3.0239439192 => 114.9098689 Surface area of the ball: 115 square centimeters correct to three significant figures.
Circumference isn't squared OR cubed. However, Surface Area is squared and so is Area. So Circumference is just Circumference :)
Entire surface area of a cylinder = (2*pi*radius^2)+(circumference*height) If you are given the circumference then radius = circumference/2*pi
2 X Pi X radius X height = area Circumference X height = area (times two if you want inside and outside assuming the walls are of zero thickness)
yes heat loss is affected by diameter, circumference and surface area. Heat loss depends on the surface area : volume ratio.......the larger this is the more heat is lost if a cylinder having the same volume but a different surface area...(therefre radius and circumference is different)........the cylinder having the larger surface area will loose heat fastest
The approximate surface area of a sphere with circumference 37.68km is 452km
Take the circumference and multiply it by it's height to get the lateral surface area.
The formula for finding the surface area of a hollow cylinder is: 2πrh + 2π(R+r)h, where r is the inner radius, R is the outer radius, and h is the height of the cylinder.