Volume of the sphere: 4/3*pi*9^3 = 972*pi cubic units
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A sphere with a radius of 9 units has a volume of 3,053.63 units3
Volume = pi*222*9 = 13684.778 cubic units rounded to 3 dp
890.19m3
Calculate the area of one circular face of the cylinder [pi (r2)], then multiply by the height of the cylinder. The answer will be approximate as pi is neither a terminating or repeating decimal. V=volume r=radius h=height V=[pi(r2)] h = [pi(32)] 3 =[pi (9)] 3 =(28.274) 3 =84.82 cm3 So, the volume of a cylinder with a radius and height of 3 cm will be approximately 84.82 cm3.
You can find the surface area of a sphere by solving this equation: SA=4(pi)(r)(r) where SA is your surface area, and r is the radius. Your answer comes out to be about 1017.4 square units.