Margins determine how much text will fit on a page. Margins are usually 1 inch wide on all four sides of a page, but they can be changed however you like.
...a frame, a margin, a box.
There are 34 lines in total but there are 35 if you count the margin.
A letter style where all lines begin at the left margin is known as block style. This style does not have anything indented as the text is flush left.
The purpose of hidden lines is to represent edges that are not directly visible. The purpose of center lines is to represent the axes of circular features.
Paragraph lines are typically aligned in relation to the page margin based on the formatting style used. In most standard formats, such as APA or MLA, the first line of a paragraph is indented by about half an inch, while subsequent lines are aligned with the left margin. In contrast, block paragraphs have no indentation and are aligned with the left margin. The right margin may vary depending on the document's layout, but it is generally flush or justified, depending on the style used.
You probably mean header and footer.
the purpose of three broken lines is a triangle!
to show where yua statement will start.
This is left alignment.
The purpose of hidden lines is to represent edges that are not directly visible. The purpose of center lines is to represent the axes of circular features.
Footer
No,plate margin&plate boundary are not same.plate boundaries are definite regions where tectonic occurs,while margins are surface lines.