According to the data you've given, it's exactly 10 x 8.5 x 11 .
I'm mystified, however, as to how in the world a piece of paper
can have three measurements like that.
Depends on the sheet. A standard sized sheet of typing/printer/copier paper is 11 inches by 8.5 inches.
11 Inches
An A4 sheet measures 210 x 297 mm. An A4 sheet of paper is the more common business and school size paper in most of the world, including Europe, whereas the 8½ x 11 inch sheet of paper is the more common business size in the USA. A4 is a little taller and narrower than a US 8½ by 11 inch sheet.
8 sheets of 8.5" x 11" paper can be cut from a 23" x 35" parent sheet.
39 inches 2x(8.5+11)
Depends on the sheet. A standard sized sheet of typing/printer/copier paper is 11 inches by 8.5 inches.
Exactly 11 inches
11 Inches
8 x 10 is a standard size of paper for photography purposes, but the standard US size for printing paper (letter size) is 8.5 x 11. The standard paper in many other countries of the world is A4 (210mm × 297mm or 8.3in × 11.7in).
An A4 sheet measures 210 x 297 mm. An A4 sheet of paper is the more common business and school size paper in most of the world, including Europe, whereas the 8½ x 11 inch sheet of paper is the more common business size in the USA. A4 is a little taller and narrower than a US 8½ by 11 inch sheet.
8 sheets of 8.5" x 11" paper can be cut from a 23" x 35" parent sheet.
39 inches 2x(8.5+11)
exactly 11 inches long
You can by 500 sheet of letter size (11"x8.5") in US$5.00. It cost large paper plant about US$3.00 give nad take few cents.
If the paper is in inches then 11 times 14 = 154 square inches
A regular white printer sheet of paper is 8.5 inches by 11 inches (8.5" X 11")
88 square inches.