Question

Please explain! Will mark brainlist!

Answer 1

Answer:

X = 19

First angle = 121°

Second angle = 59°

Step-by-step explanation:

Alternate interior angles are equal but these angles are not alternate interior angles. They are Interior angles and interior angles add up to 180°.

So,

7x - 12 + 4x - 17 = 180°

11x - 29 = 180°

11x = 180 + 29

11x = 209

X = 209/11

X = 19

First angle = (7×19) - 12

= 133 - 12

= 121°

Second angle = (4×19) - 17

= 76 - 17

= 59°