Identify the type of each quadrilateral in this geometry worksheet.

Let’s go step by step to identify each quadrilateral based on its markings.

We’ll use these key ideas:
- Parallelogram: Opposite sides are parallel and equal (marked with same number of ticks).
- Rectangle: All angles are 90° (marked with squares), opposite sides equal.
- Square: All sides equal AND all angles 90°.
- Rhombus: All sides equal, but angles not necessarily 90°.
- Trapezoid: Only one pair of opposite sides parallel.
- Kite: Two pairs of adjacent sides equal.
- General Quadrilateral: No special properties — no parallel sides, no equal sides marked.

Now let’s analyze each:

---

1)
Opposite sides have matching tick marks → opposite sides equal and parallel → Parallelogram

2)
All angles marked as 90°, opposite sides equal → Rectangle

3)
No tick marks, no right angle marks → no special properties → Quadrilateral (or “Irregular Quadrilateral”)

4)
Opposite sides have double ticks → opposite sides equal and parallel → Parallelogram

5)
No markings at all → no known properties → Quadrilateral

6)
Adjacent sides have matching ticks: two sides with single tick, two with double → this is a Kite

7)
All sides equal (double ticks on all) AND all angles 90° → Square

8)
Opposite sides have double ticks → opposite sides equal and parallel → Parallelogram

9)
Only one pair of sides marked with red dots? Wait — actually, looking again: it has one pair of sides that look parallel (top and bottom), and the other two are slanted. Also, the red dots might indicate base angles? But in standard notation, if only one pair of sides is parallel → Trapezoid

Actually, rechecking: in many worksheets, if only one pair of sides is parallel (even without explicit arrows), and it looks like a trapezoid, we call it that. The red dots may be decorative or indicate base angles — but since no side equality or parallelism is marked with ticks/arrows, but shape suggests one pair parallel → Trapezoid

Wait — actually, looking again at #9: it has small red marks on the top and bottom sides — sometimes those mean those sides are parallel. So yes → Trapezoid

10)
All sides equal (single ticks) AND all angles 90° → Square

11)
Opposite sides have matching ticks → opposite sides equal and parallel → Parallelogram

12)
Adjacent sides: two with single tick, two with double → same as #6 → Kite

---

Double-checking:

- #3 and #5: no markings → just “Quadrilateral” — sometimes called “Irregular Quadrilateral”
- #6 and #12: kite shape with adjacent equal sides → Kite
- #9: trapezoid — only one pair of parallel sides (implied by shape and possibly red dots)

Final list:

1) Parallelogram
2) Rectangle
3) Quadrilateral
4) Parallelogram
5) Quadrilateral
6) Kite
7) Square
8) Parallelogram
9) Trapezoid
10) Square
11) Parallelogram
12) Kite

All verified.

Final Answer:
1) Parallelogram
2) Rectangle
3) Quadrilateral
4) Parallelogram
5) Quadrilateral
6) Kite
7) Square
8) Parallelogram
9) Trapezoid
10) Square
11) Parallelogram
12) Kite