You can scale objects to the same size as a reference object. Resize height or width or both.
1Select the objects to resize.
2Select the object that is the size you require.
3Click a sizing tool or select Arrange > Make Same Size > ...
Note: Objects are resized with reference to the last object selected. If all objects are selected by using Ctrl+A or a selection marquee, they are resized with reference to the last object in the sequence.