jesuspreciado7370 jesuspreciado7370
  • 04-03-2017
  • Mathematics
contestada

Find the approximate radius of a sphere with a surface area of 400 square inches.

Respuesta :

sdmatera
sdmatera sdmatera
  • 04-03-2017
The equation for surface area of a sphere is SA=4*pi*r^2
We can plug in what we know to solve for r
400=4*pi*r^2
100=pi*r^2 (divide out the 4)
100/pi=r^2 (divide out the pi)
√(100/pi)=r (square root of both sides)
r=5.6 rounded to the nearest tenth
Answer Link

Otras preguntas

|-6|+|3| I really don't get it do I simply find the sum our is it something different plz explain
What is the velocity of an object that has a mass of 2.5 kilogram and a momentum of 1,000 kg·m/sec?
How many 1/10 are in 3?
"Pilgrim progress" what does the town vanity symbolize?
What is the percentage increase from 200 to 280
what does imperialism mean?
How many times dose 150 go into 1000
I have been stuck with this one, and i would like to how to solve this. In each case, determine whether line AB is parallel or perpendicular to CD. (a) A(0, 0),
Find the surface area of a rectangular prism with a length of 6.9mm, a width of 8.2mm, and a height of 14mm.
a rectangle has an area of 30 square meters and a perimeter of 34 meters. what are the dimensions of the rectangle?