Answer:
(Page 1):
1.) 150°
2.) 25°
3.) 120°
4.) 60°
(Page 2):
1.) 180 - (40 + 30) = 110°
2.) 180 - (33 + 92) = 55°
(Page 3 doesn't show questions all the way)
Step-by-step explanation:
(Page 1):
1.) ∠1 and ∠2 are Straight angles which make up 180° if added up together => 180° - 30° = ∠2
2.) ∠5 and ∠8 are Vertical angles which means they are congruent , => if ∠5 = 25 then so will ∠8.
3.) By the opposite side alternate interior angles theorem ∠6 is congruent to ∠3,
=> if ∠6 = 120, then ∠3 = 120
4.) if there is a set of an exterior angle and an interior angle, they both add up to 180°.
=> 180° - 120° = ∠4
