Resize a Plot
You can resize a plot to any dimension that fits in a worksheet.
Maintaining the Aspect Ratio
Click one of the small squares on the box around the plot.
Drag the square in the direction you want to increase or decrease the size of the plot.
You can maintain the aspect ratio of the plot by holding down the Shift key as you drag the resize squares around the plot.
See Also
Change the View of a Plot
Overview of Plotting
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