Question

Pls solve this question​

Answer 1

Draw a line parallel DC and BA and let the line

be XY

Such that XY || AB II CD

Since they r parallel,

In AB II XY

LABE + L BEY = 180°

110 + L BEY = 180°

L BEY = 70° -------- (1)

In CD || XY

L DCE + L CEX = 180°

130° + L CEX = 180°

L CEX = 50° ---------(2)

Now,

CEX + L CAN + L BEY = 180° ( linear pair ) L

50° + L CEB + 70° = 180°

120° + L CEB = 180°

L CEB = 60°

==> L BEC = 60°