The answer is given below.
The surface area of a sphere with a radius of 15 units is 2,827 units2
The surface area of this sphere is 2,123.7 units2676 units2
Surface area of a sphere = 4*pi*radius2 Surface area = 4*pi*112 = 1520.530844 square units.
The area of a sphere is given by the formula A = 4πr² A sphere with radius r has an area = 4πr² A sphere with radius 2r has an area = 4π(2r)² = 4π.4r² = 16πr² The ratio of the larger sphere to the smaller = 16πr² : 4πr² = 4 : 1 If the area of the smaller sphere is 45 units then the area of the larger sphere is 45 x 4 = 180 units.
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.
144pi units squared
144pi units2
By axis if you mean its diameter then surface area: 4*pi*8^2 = 256*pi square units
There are no images so it is impossible to tell how the dimensions of the sphere and square are related.
144pi units^2
Surface area of a sphere = 4*pi*radius^2
Surface area of a sphere = 4*pi*radius squared
Surface area of a sphere is: 4*pi*radius squared
Surface area = 20*pi square units
The surface area of a sphere with radius 6 is: 452 square units.
The surface area of a sphere with a radius of 15 units is 2,827 units2
The surface area of a sphere with a radius of 12 units is about 1,809.6 units2