You can also change width or height of a shape by making it equal in size to another shape.

To make a shape of a number of shapes equal in width

§    Select the shapes to be made equal in size. The first shape selected will be the dominant shape to which the others will be resized.

§    Choose Width from the Make Equal Size submenu under the Geometry menu, or

§    Click on the Make Equal Width button in the Geometry toolbar

Each of the shapes will be resized so that they have the same width as the dominant shape. A similar procedure can be followed to make shapes equal in height or equal in both width and height by using other commands from the Make Equal Size submenu.