The quadrilateral below is a parallelogram. Determine the value of x.

angle BDC = 15

angle DAB = 136

Guest Mar 17, 2021

#1**0 **

opposite angles in a parallelogram are congruent, so therefore angle DCB is equal to DAB, and is 136 degrees.

the sum of the interior angles of a triangle is 180 degrees, so following that, angle x = 180 - 136 - 15 (since they are all angles in triangle DCB).

so, angle x is **29** **degrees.**

hope this helped! if you would like proof for any of the properties i mentioned in my solution, feel free to ask!

idyllic Mar 17, 2021