:) Hope this helps!
A) All kites have one line of symmetry.
Step-by-step explanation:
Not all trapezoids have rotational symmetry.
A kite can never be rotated to look exactly the same, or if it does then it will become a rhombus or parallelogram.
Isosceles trapezoids do not have rotational symmetry.
This leaves us with:
All kites have one line of symmetry, which is true since it can't be a kite without symmetry or more symmetry than normal.
120
Step-by-step explanation
Exterior angle theorem:
d = a + b
d = 70 + 50
d = 120