Answer:

1.     

2.      The figure is a rectangle.

3.      Any 3 of the following characteristics are correct:

• The rectangle is a quadrilateral.
• The rectangle has four right angles formed by the horizontal and vertical segments which make the rectangle.
• Since all angles are right angles, opposite angles are congruent.
• The rectangle has two pairs of congruent opposite sides because two sides are 3 units and two sides are 4 units.
• The top and bottom of the rectangle are parallel as are the two sides.