Quadrilateral abcd is a parallelogram. de = 6.1 cm and m∠dab = 120°. what is bc? cm what is m∠bcd? ° what is ab? cm what is eb? cm

We know that

There are six important properties of parallelograms to know:

1) Opposite sides are congruent (AB = DC and AD=BC).
2) Opposite angles are congruent (D = B and A=C)
3) Consecutive angles are supplementary (A + D = 180° and D+C= 180°).
4) If one angle is right, then all angles are right.
5) The diagonals of a parallelogram bisect each other.
6) Each diagonal of a parallelogram separates it into two congruent triangles.

Part 1) What is BC?
BC=AD> BC=10 cm> by Opposite sides are congruent

the answer Part 1) is 
BC=10 cm

Part 2) What is m∠BCD?
m∠BCD=m∠DAB> m∠BCD=120°> by Opposite angles are congruent

the answer part 2) is 
m∠BCD=120°

part 3) What is AB? 
AB=CD> AB=5 cm> by Opposite sides are congruent

the answer Part 3) is
AB=5 cm

Part 4) What is EB?
EB=DE> EB=6.1 cm> by The diagonals of a parallelogram bisect each other.

the answer Part 4) is
EB=6.1 cm

The answer would be b ! explanation: the formula for sa *surface area * is 2×l×w+2×l×h+2×w×h so in this case l=4w=12h=8so you use the formula to solve it and it give you the answer of 352^cm^2

Why you be expecting me to do your math u stupid butt? i ain't gonna but ima get points so you know what i'm sayin boii