Question

In the figure, if AB |।CD. then what is the value of y.​

Answer 1

Answer:

18

Step-by-step explanation:

ABD + CDB = 180 [Co- Interior Angles]

5y + 5y = 180

10y = 180

y = 18

Answer 2

Step-by-step explanation:

y = ?

We know,angle ABD = y + 2y + y = 4y

& angle CDB = 5y

Given, AB II CD

=> angle ABD + angle CDB = 180°

(CO-INTERIOR ANGLES)

=> 4y + 5y = 180°

=> 9y = 180°

=> y = 20° ans.