Answer:
Ans 1) The true statements of rhombus are
b)has two pair of opposite congruent angles.
d) has 4 congruent sides.
Ans 2) and Ans 3) are below.
Explanation:
Property of Rhombus:
- all the four sides are equal.
- Opposite angles are equal.
- opposite sides are parallel
- Diagonals bisect each other at right angles.
Ans 2) Perpendicular bisector theorem states that if a point is on the perpendicular bisector of a segment, then it is equidistant from the segment's end points.
Ans 3) Diagonal EG is a line of symmetry for rhombus EFGH because

but not

Here corresponding sides are not equal.
and also corresponding angles are not equal.