PLEASE HELP*** Select all of the correct statements about the unchanged properties of quadrilateral.

Choose all answers that apply:

(Choice A)
A: line BC and line B′C′ are both parallel to the y-axis.

(Choice B)
B:∠B and∠B′ have the same measures.

(Choice C)
C: D and D′ have the same coordinates.

(Choice D)
D: None of the above

i believe the answer is d.

hope it you! : d

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.