Question

a circular cylimder can hold 61.6c.c of water. if the height of the cylinder is 40cm and the outer diameter is 16mm, thrn the thickness of the material of the cylinder is: in mm​

Answer 1

Step-by-step explanation:

the outer radius is16/2mm=8mm=.8cm

the inner radius is x cm

so volume of water is the inner volume of the cylinder

πx^2.40=61.6

x^2=61.6×7/22×40

x^2=.49

x=.7

so the inner radius is .7cm=7mm

so the thickness of the material of the cylinder is (8-7)mm=1mm