The Intersect option among the Merge Shape options in PowerPoint is little different when compared to other options. This option retains only the area where all of the selected shapes overlap. So, among the selected shapes, even if there is a single shape that doesn’t overlap all other shapes, the result of applying Intersect option to those shapes will be a shape that has no existence! The following tutorials show you how Intersect option works; please choose your version of PowerPoint:
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