Question

Help me in finding the unknown angles​

Answer 1

Answer:

100+80+40+x = 360 (sum of all angles of quadrilateral is 360°)

x= 360-220

x = 140

<x +<y = 180° { angles in linear pair )

140+y = 180

y = 180-140

y = 40

hope this helps you

Answer 2

Answer:

$100 + 80 + 40 + x = 360 \\ 220 + x = 360 \\ x = 360 - 220 \\ x = 140 \\ x + y = 180(linearpair) \\ 140 + y = 180 \\ y = 180 - 140 \\ y = 40$

$122 + 50 + 90 + x = 360 \\ 262 + x = 360 \\ x = 360 - 262 \\ x = 98 \\ x + y = 180 \\ 98 + y = 180 \\ y = 180 - 98 \\ y = 82 \\ z = 50(corresponding \: angl)$