A, E, and D are collinear. BCDE is a parallelogram. Find m

B. 29º

Step-by-step explanation:

Given that BCDE is a parallelogram, then and A, E and D are collinear. Then, angle E inside triangle ABE and angle D inside parallelogram BCDE have the same measure. That is:

(1)

In addition, the sum of internal angles in triangles equals 180º, which implies that:

(2)

If we know that   and , then is:

Hence, correct answer is B.