Question

Using the properties of quadrilaterals, find the value of y in the given quadrilateral. ​

Answer 1

Step-by-step explanation:

IN QUADRILATERAL SUM OF TWO OPPOSITE SIDES =180

THEREFORE,2y+120=180

2y=180-120

2y=60

y=60/2=30

Answer 2

Answer:

According to the picture angel BCD = 120 °

And angle ADC = angle BCD = 120 degree

=> angle ADC + angle BAD = 180 °

=> 120= + 2Y = 180 °

=> 2Y = 180 ° - 120 °

=> 2Y = 60 °

If 2Y = 60 ° then Y = 60/2 = 30 °