Question

I don’t know what this is or have any idea how to do it can someone help and explain

Answer 1

w = -13

Explanation:

Since BC bisects <ACD, then <ACB = <BCD.

We know that those two angles must equal 108 because 180-72=108.

Half of 108 is 54.

<BCD is the same as the same as the angle that equals 2w+80, so

2w+80=54

2w=54-80

2w=-26

w=-13