The Make Equal Size submenu has commands for resizing shapes drawn in the Shape window such that they have the same width or height as the dominant shape. The dominant shape is the first shape that was selected within the current selection.

Scales the width of all selected shapes to be equal to the width of the first selected shape.

Scales the height of all selected shapes to be equal to the width of the first selected shape.

Scales the width and height of all selected shapes to be equal to the width and height of the first selected shape.