Mesmerise
July 5th, 2011, 05:06 AM
Well, today I had this idea for estimating your circumference if you've got shorter hair that doesn't all fit into one pony tail.
Now, all my hair is long, obviously, but because of shedding last year I have lots of shorter hair that doesn't fit into my pony.
My low down pony at the back of my head has a circ of about 2.5", while one I do higher up gets about 2.75".
Anyway, today I was messing around, and I got the idea to put in 4 pigtails in my hair and measure the circ of all of them so I could work out what my overall circ would be if I could fit it all in a ponytail (if that makes sense). Now it needs a bit of calculation cause you can't directly add the numbers together.
What I did was used the circumference to calculate the area of the hair, and then added all the areas together, and calculated the circumference of one ponytail with that area.
The formulas are: Circumference = pi x diameter
Area = pi x radius^2
So I basically worked out the diameter then the radius to get the area...added all the areas together, and then worked backwards to get a single circumference.
When I did this I got a circ of almost 3"... So I'm hoping for that sort of circ when my hair has grown back!
Now, all my hair is long, obviously, but because of shedding last year I have lots of shorter hair that doesn't fit into my pony.
My low down pony at the back of my head has a circ of about 2.5", while one I do higher up gets about 2.75".
Anyway, today I was messing around, and I got the idea to put in 4 pigtails in my hair and measure the circ of all of them so I could work out what my overall circ would be if I could fit it all in a ponytail (if that makes sense). Now it needs a bit of calculation cause you can't directly add the numbers together.
What I did was used the circumference to calculate the area of the hair, and then added all the areas together, and calculated the circumference of one ponytail with that area.
The formulas are: Circumference = pi x diameter
Area = pi x radius^2
So I basically worked out the diameter then the radius to get the area...added all the areas together, and then worked backwards to get a single circumference.
When I did this I got a circ of almost 3"... So I'm hoping for that sort of circ when my hair has grown back!