Question

B
11.
ABCD is a parallelogram in which angle ADC = 75° and side AB is produced to E as shown in figure,
find (x + y).​

Answer 1

Step-by-step explanation:

angle c and angle d =180

let angle c be x and angle D be 75 which is givin is equal to 180 so,x= 105

Y=X DUE TO ALTERNATE INTERIOR ANGLE

SO, x + y = 105 +105 =210°