Answer:
The tools in this part of the Drawing toolbar are:
Select: selects objects. To select multiple objects click on the top leftmost object and while keeping the mouse button pressed, drag the mouse to the bottom rightmost object of the intended selection. A marching ants rectangle identifying the selection area is displayed. It is also possible to select several objects by pressing the Control button while selecting the individual objects.
Line: draws a straight line.
Arrow: draws a straight line ending with an arrowhead. The arrowhead will be placed where you release the mouse button.
Rectangle: draws a rectangle. Press the Shift button to draw a square.
Ellipse: draws an ellipse. Press the Shift button to draw a circle.
Text: creates a text box with text aligned horizontally.
Vertical text: creates a text box with text aligned vertically. This tool is available only when Asian language support has been enabled in Tools > Options > Language Settings > Languages.
Curve: draws a curve. Click the black triangle for more options, shown below. Note that the title of the submenu when undocked is Lines.
