The diameter of a circle is its ___________ chord.

Answer

To solve the question, "The diameter of a circle is its ___________ chord," we can follow these steps:

### Step 1: Understand the Definition of a Chord
A chord is a line segment with both endpoints on the circle. It can connect any two points on the circumference of the circle.

**Hint:** Remember that a chord does not have to pass through the center of the circle.

### Step 2: Identify the Diameter
The diameter is a special type of chord. It is defined as the longest chord of the circle and passes through the center of the circle.

**Hint:** Think about what makes the diameter different from other chords.

### Step 3: Compare the Diameter with Other Chords
While there are many chords in a circle, the diameter is unique because it is the only chord that divides the circle into two equal halves. All other chords are shorter than the diameter.

**Hint:** Visualize or draw a circle and mark various chords to see which one is the longest.

### Step 4: Conclude the Answer
Based on the definitions and comparisons, we can conclude that the diameter of a circle is its longest chord.

**Final Answer:** The diameter of a circle is its **longest** chord.