If `A B C D` is a rhombus with `/_A B C=56^@,` find the measure of `/_A C D`

Explanation

To solve the problem, we need to find the measure of angle \( \angle ACD \) in the rhombus \( ABCD \) given that \( \angle ABC = 56^\circ \).

### Step-by-Step Solution:

1. **Understand the Properties of a Rhombus**:
- In a rhombus, opposite angles are equal, and adjacent angles are supplementary (they add up to \( 180^\circ \)).
- Thus, if \( \angle ABC = 56^\circ \), then \( \angle ADC = 56^\circ \) as well.

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