Question

find y with step by step explanation

Answer 1

Answer:

20

Step-by-step explanation:

angleFOD=COD=30 degree(verticle opp. angles)

90degree+angleFOD+3y=180 degree(linear pair)

120 degree +3y =180 degree

3y =60 degree

y =20 degree

i think it helped u dear

Answer 2

answer is 20

Step-by-step explanation:

since EF is a straight line,

*30° + AngleCOA + 90° = 180 (LINEAR PAIR)

*AngleCOA = 180-120

*AngleCOA = 60°

Now,

similarly, when CD is a straight line,

*60° + 90° + AngleDOF = 180 (LINEAR PAIR)

*150 +AngleDOF = 180

*AngleDOF= 180-150

*AngleDOF= 30°

Similarly, when AB is a straight line,

*90° + 30° + 3y= 180 (LINEAR PAIR)

*120 + 3y= 180

*3y= 180-120

*3y= 60

*y = 60÷3

*y = 20

Please mark as brillianist!!