Step-by-step explanation:
The conditions that must be met include the following;
- the polar bonds must be opposite each other
- the polar bonds must be symmetrically arranged
- all the dipole bonds face toward the central atom.
When a bond is polar, it creates a dipole, a pair of charges (one positive and one negative). If they are arranged in a symmetrical shape, so that they point in opposite directions, they will cancel each other making it non polar.