Pls help this is due today! Find the m

Step-by-step explanation:

1. Approach

First, use the sum of angles in a quadrilateral theorem to find the value of the parameter (). This theorem states that the sum of all angle measures in a quadrilateral is (). After finding the value of (), substitute it back into the given value for the (), and solve.

2. Finding ()

Remember, the sum of angle measures in any quadrilateral is 360 degrees, regardless of the quadrilateral type.

Using this knowledge, one can apply it by saying;

Substitution,

Combine like terms;

Inverse operations;

3. Finding ()

Substitute back in to find the

a

step-by-step explanation:

43

step-by-step explanation: