Answer:
Given.. hope it helps!
Step-by-step explanation:
It is given that angle A is 75°
The angle diagonally opposite to angle A, which is angle C, is also equal
So angle C= 75°
(cuz opposite angle in a parallelogram are equal)
Also,
In a parallelogram, the adjacent angles (angles next to each other add up to 180)
So angle A + angle B = 180
we know angle A
so,
75+B=180
B=180-75
= 105°
Same way angle C + angle D are adjacent so they add up to 180
C+D=180
we know what is C
So,
75+D=180°
D=180-75
= 105°
