Consider the following parallelograms. Find the values of the unknowns x, y, z.

Explanation

To find the values of the unknowns \( x \), \( y \), and \( z \) in the given parallelogram, we can follow these steps:

### Step 1: Understand the properties of a parallelogram
In a parallelogram, adjacent angles are supplementary, meaning they add up to \( 180^\circ \). Also, opposite angles are equal.

### Step 2: Identify the given angle
We are given that angle \( B \) is \( 100^\circ \).

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