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June 25, 2016
Posted by **Kenzi** on Monday, November 17, 2008 at 10:22pm.

- math -
**?**, Monday, November 17, 2008 at 10:26pmBy using a pencil?

- math -
**Kenzi**, Monday, November 17, 2008 at 11:09pmThis is an actual question that I have for math homework tonight. A SERIOUS response would be greatly appreciated if someone could help me out. Thanks

- math -
**Reiny**, Tuesday, November 18, 2008 at 12:07ammark the corners of the sheet as A,B,C,D where AB is the longer side of 11 inches

Fold the paper in half to mark the midpoint of AB, call it M

open it up again, now fold it to have C land on M, crease the paper to form a triangle AMN, where N is along AD

Le AN = x, then MN = 8.5 - x, of course AM = 5.5

then x^2 + 5.5^2 = (8.5-x)^2

solving this I got x = 2.47 or appr 2.5

so MN = 8.5-2.5 = 6

and of course DN = 6

now open the sheet up again and fold it at D so that AD falls along DC

on DC mark the place where N falls along DC, call it P

Then of course PC = 11-6 = 5