Question

if abcd is a parallelogram what is the value of x

Answer 1

Look at the picture.


$42^o+(3x+6)^o=180^o\ \ \ \ |-42^o\\\\(3x+6)^o=138^o\ \ \ |-6^o\\\\(3x)^o=132^o\ \ \ |:3\\\\x^o=44^o$

Answer: F. 44