A parallelogram is shown below: Part A: What is the area of the parallelogram? Show/ describe your work. Part B: How could decomposing the parallelogram into two triangles and a rectangle help you find the area? Part C: If this parallelogram was decomposed into two triangles and a rectangle, what would be the area of each triangle?

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.

13664

step-by-step explanation:

=cross multiply

=100 x = 13664

3x-x+2=4 i think that's is the answer, and i hope it you