Respuesta :

We know that angle 2 is 1/8 of angle 5.

<5= 80 degrees.

80/8= 10

<2 is 10 degrees. 

<2 and <4 are adjacent angles. They equal 180 degrees. 

180-10= 170

"D" is the correct answer.

I hope this helps!
~kaikers
Q&A Education