Answer:
1.
a. 3
b. ( 3x - 5 )
c. 2
d. ( 2y - 7 )
e. ------
f. -------
2.
a. 8cm
b. 6.5cm
c. The diagonals of a parallelogram bisect each other
(sorry po yan lang po nakayanan ko)
Properties of a parallelogram:::
Parallelogram Property No.1: In a parallelogram, any two opposite sides are congruent
Parallelogram Property No.2: In a parallelogram, any two opposite angles are congruent
Parallelogram Property No.3: In a parallelogram, any two consecutive angles are supplementary
Parallelogram Property No.4: The diagonal of a parallelogram bisect each other
Parallelogram Property No.5: A diagonal divides the parallelogram into two congruent triangles