samera30sabanovic
samera30sabanovic samera30sabanovic
  • 04-06-2021
  • Mathematics
contestada

help the volume of the roller is 576cm. Calculate the height and area of ​​the roller if its radius is 8cm​.​

Respuesta :

samuelonum1
samuelonum1 samuelonum1
  • 09-06-2021

Answer:

143.7cm^2

Step-by-step explanation:

Given data

Volume= 576cm^3

Radius= 8cm

The expression for the volume of cylinder is

V= πr^2h

substitute

576= 3.142*8^2*h

576= 3.142*64*h

576= 201.088h

h= 576/201.088

h=2.86cm

The formula for finding the lateral area of a right circular cylinder is:

A=2πrh

substitute

A= 2*3.142*8*2.86

A= 143.7cm^2

Hence the area is 143.7cm^2

Answer Link

Otras preguntas

prefix of im (means) like improper?
PROVE: ((1+cosx)/sinx)+(sinx/cosx)=((cosx+1)/(sinx+cosx)). Idk what to do because I'm pretty sure the way I did it was wrong...
compare and contrast tropics , temperate zones and polar zones
What ion is present in all acid solutions?
Whats a material made of oxygen and silicon
describe the difference between motion and a reference point
A triangular region of the community college parking lot was measured. The measure of the first angle of this triangle is double the measure of the second angle
joe correctly answered 70% of the questions on a test. there were 50 questions. how many questions did joe answer correctly?
what is 2% of $230,000
how many liters of a 20% alcohol solution should be mixed with a 50 liters of a 60% alcohol solution to obtain a 30% solution?