Question

find the value of y and z​

Answer 1

Step-by-step explanation:

$for \: y \\ 5x - 80 = 180(linear \: pair) \\ 5x = 100 \\ x = 20 \\ to \: find \: z \\ 2x + 10 = 180 \\ 2x = 170 \\ x = 85$

Answer 2

Answer:

y=110°,z=110°

Step-by-step explanation:

2x+10=5x-80 being vertically opposite angle

x=30°

∴5x-80°=5*30-80=70°

now,

y+5x-80°=180° being straight line

y+70°=180°

∴y=110°

z=y being vertically opposite angle

∴z=110°