Answer:
50°
Step-by-step explanation:
Opposite angels of a parallelogram are congruent to each other.
This means:
<ADC = <ABC
<ADC = 38° + 12°
<ADC = 50°
Since <ADC = <ABC, therefore,
<ABC = 50°
Set ? as x, and cross-multiply.
so x^2= 36
x = 6 or x = -6
Answer:
y = -1
Step-by-step explanation:
