The RotationAngle property returns or specifies the angle at which a shape was rotated. Assigning a value to this property rotates the shape so that its resulting rotation angle equals the specified value.
Examples:
The following VBA example removes any rotation from the shapes on a page.
Sub Test()
Dim s As Shape
For Each s In ActivePage.Shapes
If s.RotationAngle <> 0 Then
s.RotationAngle = 0
End If
Next s
End Sub