Question

What is the value of y in the parallelogram?
*PICTURE INCLUDED*
I got 140 for y, am I right?

Answer 1

that's way too big

Answer 2

hint: find this angle first

Answer 3

How? o_o

Answer 4

by finding the green angle first, then subtracting off 30 from the green angle

Answer 5

>.< Wow, I'm confused.

Answer 6

focus on the following triangle

Answer 7

First label the figure this way. Then it is easier to track arguments.

Answer 8

In triangle BEC, the angle BEC is 80 degrees.

Answer 9

Now, angle CED is thus 100 degrees. (angle BEC and angle CED form a linear pair=180 degrees)

Answer 10

Now, angle BAC=angle ACD=angle ECD=50 degrees. They are all alternate angles between parallel lines.

Answer 11

Now, in triangle ECD, you have angle CED=100; angle ECD=50. You can then find the remaining angle y.