Question 935959
A quadrilateral is a four sided polygon; so, it can be a parallelogram (2 pairs of parallel sides), a square (2 pairs of parallel sides), rectangle(2 pairs of parallel sides) , rhombus (2 pairs of parallel sides), trapezoid (1 pair of parallel sides) , kite (no parallel sides).

so, if looks like a kite, then IS kite

A kite is a quadrilateral with two pairs of adjacent, {{{congruent}}} sides.
The angles between the congruent sides are called vertex angles . The other angles are called non-vertex angles .
The opposite angles at the endpoints of the cross diagonal are congruent.

given:

NOPQ, < {{{POQ =70}}} and < {{{PQN = 135}}} 

if < {{{PQN = 135}}} then < {{{NOP = 135}}} as the opposite angles at the endpoints of the cross diagonal


so, < {{{ONQ}}} will be < {{{ONQ=360-(135+135+70)}}}=> < {{{ONQ=360-340}}}

=> < {{{ONQ=20}}}