1 page
Refers to one side of a printed piece of paper (aka a sheet).
Thus 1 page = 1/2 of a sheet.
Thus 1 page = 1/2 of a sheet.
"I put my printer in duplex mode so my 22 page report will only take 11 sheets of paper."
"My 1 page letter only uses 1/2 of a sheet of paper"
"My 1 page letter only uses 1/2 of a sheet of paper"
page 1
The beginning of a book
I'm going to read a book from page 1