

Text box (box with a “T” inside): Insert a text box to add text to your drawing.Shape (circle overlapping a square): Allows you to insert several premade shapes, including arrows, callouts, and equation symbols.Lines (slanting line): Choose between several different line styles to draw.Select (cursor): Select a shape in your drawing.

You can insert a ruler or guidelines from the drop-down menu. Zoom (magnifying glass): Zoom in or out on your drawing.

