Question

For what value of x is the
quadrilateral a parallelogram?
2xº
(x + 30°)

Answer 1

50°

Explanation:

In a parallelogram, opposite angles are equal and all angles sum up to 360°.

So, 2x + 2x + x + 30 + x + 30 = 360

6x + 60 = 360

6x = 300

x = 50°

I think this is the answer.