I imagine that trying to.
Figure diameter of roll of carpet.
Is there an easy way to estimate the area of carpet remaining on each roll.
See if you can take it from here to find the diameter.
The area of a rectangle can be calculated by multiplying its length times its width.
Diameter sqrt length thickness pi tube diameter tube diameter 4 4 pi the area of the circular cross section of the rolled up carpet diameter diameter pi 4 is the same as the area of the circular cross section of the tube tube diameter tube diameter pi 4 plus the area of the edge of the carpet thickness length.
It seems silly to unroll each roll of carpet just to measure.
So if you buy 12 metres of carpet you get a piece 3m x 12m.
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So if you buy 12 metres of carpet.
For this example the width.
D 1 mm tape length.
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We have a couple of carpet roll remnants in a storage unit and need to recarpet some rooms.
Find the area of the entire carpet roll and the area of the hole in the center.
N use exact formula.
19 60 mm outside radius.
Assuming the rolled up carpet is a cylinder with diameter and width.
D 0 mm roll external diameter.
A roll of carpet is a certain width maybe 3metres and you buy it by the metre length or yard length.
Digging out my long forgotten 6th grade geometry i know i could estimate each carpet ring using pi x diameter x.
The extra fluffiness of the fibers is negligible.
4 20 mm outside diameter.
The proper way to measure the thickness of the carpet is to measure the general thickness as it appears while it is relatively flat in the roll.
The length units that can be used are yard feet inch meter centimeter millimeter mil and micron.
An example of rolled material would be a rolled carpet or a rolled sheet of paper from the paper mill.
For example if the carpet roll is 22 inches the radius will be 11 inches.
If your roll of carpet is wound around a tube use the measurement of the tube s diameter as the diameter of the hole.
Neither of us has ever seen a carpet roll shaped perfectly cylindrically since it is a spiral with an edge that usually sticks out off the rest of the roll.
L m number of turns.
8 20 mm core radius.
If the center hole diameter is 6.
Find the area by multiplying 3 14 11 2 379 94.