Question

AB CD and EF are straight lines.
AB is parallel to CD.
Work out the size of angle y.

Answer 1

Answer:

108 degrees

Step-by-step explanation:

2x + 16 = 3x - 12 ( Corresponding angles)

by solving, x = 28 degree

substitute value of x in 3x - 12

3x - 12 = 72 degree

3x - 12 + y = 180 ( linear pair)

y = 180 - 72

y = 108 degree

Answer 2

Answer:

2x+16=3x-12

16+12=3x-2x

x=28

By Corresponding Angles

y+3*28-12=180

y+72=180

y=180-72

y=108

HOPE THIS HELPS YOU