You can insert predrawn shapes, such as triangles, arrows, circles, and rectangles, to use as simple graphics.
Click Shapes in the toolbar, and then select a shape from the pop-up menu.
Choose Insert > Shape > Shape.
Press the Option key as you click Shapes in the toolbar, and then select a shape from the pop-up menu; the pointer changes to a crosshair. Drag across the canvas to create a shape the size you want. To constrain the shape’s proportions (for example, to keep triangles equal on all sides), press the Shift key as you drag.
Drag the new shape to wherever you want it on the canvas. To change the shape’s contours, you must first make the shape editable; see Making Shapes Editable.
To learn about manipulating and aligning shapes, and changing their general object properties, such as color, border style (stroke), size, orientation, shadows, and more, see About Manipulating, Arranging, and Changing the Look of Objects.