Question

four pencils are held together in a square by an elastic band if the pencils are of diameter 7mm what is the length of the band in this position

Answer 1

The distance between pencil centers on each side is 1 diameter, or 7mm.

At each corner there is a quarter-circle, so the entire length is

4*7 + π*7 = 7(4+π) mm

Answer 2

Steve is a gangsa

Answer 3

49.99114858

Answer 4

Wow Its So Cul..Thanks

Answer 5

Thank you it was correct.

Answer 6

ok but what if it was 10mm?

Answer 7

if it was 10mm it would be 10(4+π)

Answer 8

thanks alot

Answer 9

What if the same elastic band holds 7 of the same pencil

Answer 10

The number of pencils touching the band is 6 using 60° for ©
2r+[©/360×2#r]
That is perimeter if a sector.

Answer 11

Radius of pencil=7/2. Length of band=4*2d=8*7=56mm