Solution:
1. Convex four sided Polygon, we can call all these quadrilaterals that is Written here:
a. Parallelogram =1. Opposite sides are equal and parallel. 2. Diagonals Bisect each other. 3. Opposite angles are equal.
b. Rectangle = 1. All angles are of 90 degrees. 2. Opposite sides are equal and parallel. 3. Diagonals Bisect each other and are equal.
c. Square= 1. All angles are of 90 degrees. 2. All sides are equal and Opposite sides are parallel. 3. Diagonals Bisect each other at right angles and are equal.4.You can call it four sided Regular polygon.
d. Trapezoid= 1. One pair of opposite sides are parallel.
2.
True statement: a. All rectangles are squares
Because all the properties that rectangle possess is satisfied by square.
3. True statement: c. Not all parallelograms are rectangles.
4. Property which is not a characteristic of a parallelogram
Option b: All angles are congruent.