Question

find the measure of unknown angles in the following figures​

Answer 1

above are the answers for your questions

Answer 2

Answer:

a) Lx=65°=(opposite vertical angle)

linear pair=180°

65°+y=180°

y=180°-65°=y=115°

b)First angle =3x+15

second angle =2x-10

3x+15+2x-10=180°

5x+5=180°

5x=180°-5

x=175 35

5

x=35