Question

What is the length of side AB of parallelogram ABCD? ____ units
AB=4q-8
DC=q+4

Answer 1

The answer to this equation is 8 units.

Answer 2

In a parallelogram, opposite sides are parallel and also equal.

So,

If we construct a parallelogram ABCD, then side AB= side DC and

side BC= side AD.

As,

side AB= side DC

4q-8 = q+4

4q-q = 4+8

3q = 12

q = 4

Now, length of side AB= 4(4)-8= 8 units