When Word inserts a vertical red line into your margins when you create a new paragraph, it means someone has enabled change tracking in the document. Change tracking is often used with shared ...

They all have vertical symmetry. This means you can draw a mirror line down through the middle of each shape and divide it into two reflected halves. Remember vertical means from top to bottom.

They all have vertical symmetry. This means you can draw a mirror line down through the middle of each shape and divide it into two reflected halves. Remember vertical means from top to bottom.