Find the surface area and volume of a sphere with a radius of 8cm. Use pi equals 3.14 and round to the nearest hundredth.
can someone help me please

Question

Find the surface area and volume of a sphere with a radius of 8cm. Use pi equals 3.14 and round to the nearest hundredth. 
can someone help me please

anonymous · Answer

the equation for surface area of a sphere is 
SA = 4(pi)r^2
if we know that the radius (r) is 8cm, we can plug values in for the Surface Area equation :)

SA = 4(3.14)(8)^2
     = 803.84

The surface area of the sphere is 803.84 cm^2

hope that helped! :)

anonymous · Answer

can you help find the volume

anonymous · Answer

yep!! volume = (4/3)(pi)(r)^3

plugging in these values again,

V = (4/3)(3.14)(8)^3
  = 2,143.57

The volume is 2143.57 cm^3

goldphenoix · Answer

To find the  volume of a sphere, you must use the formula: $$\large \large V = \frac{ 4 }{ 3 } × \pi × r^3$$ We know that the radius is 8. So cube it to get 512. Next, you times it by 4/3 to get 682.67. Final step is to pi it. The volume should be 2144.66 m^3.

anonymous · Answer

thank you