Question

Find angle x in the following figure and state the type of pairs of angles they

form.
​

Answer 1

Step-by-step explanation:

2(x-30)+x=180

3x-60=180

3x=240

x=80

they supplementary angles

Answer 2

Answer:

x=80

Step-by-step explanation:

x+2(x-30)=180° (linear pair)

x+2x-60=180

3x-60=180

3x= 180+60

3x=240

x=240/3

x=80

they form a linear pair (supplementary angles)