Labeling parts of a circle worksheet with vocabulary terms.

Let’s go step by step to label each part of the circle correctly using the given words:

We have 8 labels to place, and 8 terms provided:
- Arc
- Chord
- Circumference
- Diameter
- Radius
- Sector
- Segment
- Tangent

Now, let’s identify each arrow in the diagram (going clockwise from top-left):

1. Top-left arrow pointing to the curved outer edge → This is the Circumference — it’s the distance around the circle.

2. Arrow pointing to the straight line from center to edge (top vertical) → That’s a Radius.

3. Arrow pointing to the pie-slice shape (top-right section bounded by two radii and an arc) → That’s a Sector.

4. Arrow pointing to the straight line touching the circle at one point on the right side → That’s a Tangent — it touches the circle at exactly one point.

5. Bottom-right arrow pointing to the straight line that cuts across the circle but doesn’t pass through center → That’s a Chord.

6. Bottom-left arrow pointing to the area between the chord and the arc below it → That’s a Segment.

7. Left-side arrow pointing to the horizontal line passing through the center from left to right edge → That’s the Diameter.

8. Top-middle arrow pointing to just a small curved part of the circumference (between two points) → That’s an Arc.

Wait — let’s double-check the positions based on standard diagrams:

Actually, looking again at typical labeling:

- The horizontal line through center = Diameter ✔
- The vertical line from center to top = Radius ✔
- The curved outer boundary = Circumference ✔
- The line touching circle at one point outside = Tangent ✔
- The straight line connecting two points on circle, not through center = Chord ✔
- The area between chord and arc = Segment ✔
- The “pie slice” with two radii and arc = Sector ✔
- A portion of the circumference = Arc ✔

Now match arrows to these:

Assuming the arrows are placed as follows (based on common worksheet layout):

→ Top-left arrow (pointing to upper curve) → Arc
→ Top-center arrow (pointing to vertical radius) → Radius
→ Top-right arrow (pointing to sector) → Sector
→ Right arrow (pointing to tangent line) → Tangent
→ Bottom-right arrow (pointing to chord) → Chord
→ Bottom-center arrow (pointing to segment) → Segment
→ Left arrow (pointing to diameter) → Diameter
→ Far-left arrow (pointing to full outer edge) → Circumference

But wait — there are only 8 boxes and 8 terms. Let me assign them logically by position:

Standard order for such diagrams (clockwise starting from top):

1. Arrow pointing to the top curved part → Arc
2. Arrow pointing to the vertical line from center to top → Radius
3. Arrow pointing to the wedge-shaped region (sector) → Sector
4. Arrow pointing to the external line touching circle → Tangent
5. Arrow pointing to the chord (bottom slanted line) → Chord
6. Arrow pointing to the region under the chord → Segment
7. Arrow pointing to the horizontal line through center → Diameter
8. Arrow pointing to the entire outer edge → Circumference

Yes — this matches all 8 terms.

Final Answer:

Starting from top-left and going clockwise (or following arrow positions as typically arranged):

- Top-left arrow → Arc
- Top-center arrow → Radius
- Top-right arrow → Sector
- Right arrow → Tangent
- Bottom-right arrow → Chord
- Bottom-center arrow → Segment
- Left arrow → Diameter
- Far-left arrow → Circumference

But since the question asks to "label each part", and we must provide the correct term for each box, here's the final matching:

Based on standard interpretation of such diagrams:

The eight labeled parts correspond to:

1. Curved part of circle (not full) → Arc
2. Line from center to edge → Radius
3. Pie-slice area → Sector
4. External touching line → Tangent
5. Straight line inside circle (not through center) → Chord
6. Area between chord and arc → Segment
7. Line through center connecting two edges → Diameter
8. Full outer boundary → Circumference

So, assigning to the boxes in the diagram (assuming typical placement):

Final Answer:
Arc, Radius, Sector, Tangent, Chord, Segment, Diameter, Circumference

But to be precise — since the user expects the answer mapped to the diagram’s arrows, and without seeing exact arrow numbers, we rely on standard educational diagrams.

In most such worksheets, the labels are assigned as:

- Top-left box (arrow to small curve) → Arc
- Top-middle box (arrow to radius) → Radius
- Top-right box (arrow to sector) → Sector
- Right box (arrow to tangent) → Tangent
- Bottom-right box (arrow to chord) → Chord
- Bottom-middle box (arrow to segment) → Segment
- Left box (arrow to diameter) → Diameter
- Far-left box (arrow to full circumference) → Circumference

Thus, the correct labeling is:

Final Answer:
Arc, Radius, Sector, Tangent, Chord, Segment, Diameter, Circumference