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I remember hearing that you don't have to be exactly accurate when drawing them since it can get tricky, but you should know what the angles are for the shapes in the VSEPR structure if you are asked for them. For example for AX3 its trigonal planar and has bond angles of 120.
I'm pretty sure that when you state the bond angles for structures that have lone pairs (which decrease bond angle size), you can just say that the bond angles are "less than [blank] degrees." For example, for the molecule SnCl2, the VSEPR structure is AX2E, and the bond angle is <120 degrees.
Bond angles do not have to be accurate for lewis structure and if I remember correctly we will not be asked to draw the shapes for VSEPR. We just need to know the names of the shapes and the bond angles
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