Look at the following bellow. Which of the following statements could be stepped in prove that vertical angles are congruent

1. <APC ~ <DPB because angles complementary to the same angle are congruent to each other.

2. <APC ~ <DPB because angles supplementary to the same angle are congruent to each other.

3.<APC ~ <DPB because angles adjacent sent to the same angle are congruent to each other.

4. <APC ~ <DPB because the angles formed by the same pair of intersecting lines are congruent to each other.
friendliest

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐

she would want to sell 10 full-year subscriptions and at least 9 half-year subscriptions to get a total of at least $300. 

i hope this answer you! if you have any further questions or concerns, feel free to ask! : )

step-by-step explanation:

mark brainliest!

idk

step-by-step explanation: