Identifying Quadrilateral worksheet - Free Printable

Let’s go through each shape one by one and match it to the correct name from the list:
rhombus, square, rectangle, parallelogram, trapezoid, quadrilateral

Remember:
- A quadrilateral is any 4-sided shape — so ALL of these are quadrilaterals! But we want the *most specific* name.
- A rectangle has 4 right angles and opposite sides equal.
- A square has 4 equal sides AND 4 right angles.
- A parallelogram has two pairs of parallel sides (opposite sides are equal and slanted or straight).
- A rhombus has 4 equal sides, but angles don’t have to be right angles.
- A trapezoid has only ONE pair of parallel sides.

Now let’s label them:

1) This is a rectangle — 4 right angles, opposite sides equal. → rectangle

2) Only one pair of parallel sides (top and bottom). → trapezoid

3) Looks like a rectangle turned sideways — still has 4 right angles. → rectangle

Wait — actually, looking again at #3: it’s tilted, but if all angles are right angles and opposite sides equal, it’s still a rectangle. BUT — sometimes in worksheets, they might call this a “parallelogram” if it’s not aligned with the page… Hmm. Let’s check carefully.

Actually, no — if it has 4 right angles, it’s a rectangle regardless of tilt. So #3 = rectangle? Wait — maybe I should double-check the shapes.

Looking again:

#1: clear rectangle → rectangle
#2: top and bottom parallel, sides slant inward → trapezoid
#3: looks like a rectangle rotated — yes, still rectangle
But wait — maybe the worksheet considers #3 as a parallelogram? No — rectangles are special parallelograms, but we use the most specific name.

Hold on — let me look at #8: that’s clearly a vertical rectangle → rectangle
#12: also looks like a rectangle, just tilted → rectangle

But then what about #7 and #11? Those are slanted with two pairs of parallel sides → parallelograms

And #6: diamond shape, all sides equal → rhombus

#4: looks like a square — all sides equal, right angles → square

#5: only one pair of parallel sides? Top and bottom? Actually, left and right are vertical, top and bottom are slanted — so only one pair of parallel sides? Wait — no, if left and right are both vertical, they’re parallel. And top and bottom are not parallel. So that would make it a trapezoid? Or is it a general quadrilateral?

Wait — let’s be precise.

In standard math for elementary level:

- Trapezoid: exactly one pair of parallel sides (in some definitions, at least one pair — but usually in US schools, it’s “exactly one”).

Looking at #5: left and right sides are vertical → parallel. Top and bottom are slanted and not parallel → so only one pair → trapezoid.

Similarly, #9: left side vertical, right side slanted, top and bottom slanted — do any sides look parallel? Probably not — so this might be just a quadrilateral.

Wait — let’s list all 12 with careful analysis:

1) Rectangle — obvious → rectangle

2) Trapezoid — top and bottom parallel, sides not → trapezoid

3) Tilted rectangle — still 4 right angles → rectangle

4) Square — all sides equal, right angles → square

5) Left and right sides vertical (parallel), top and bottom not parallel → trapezoid

6) Diamond — all sides equal, angles not right → rhombus

7) Slanted, two pairs of parallel sides → parallelogram

8) Vertical rectangle → rectangle

9) No sides appear parallel → quadrilateral (since it doesn’t fit others)

10) Similar to #5 — left and right vertical? Wait, #10: left side vertical, right side slanted, top and bottom slanted — actually, top and bottom might be parallel? Looking at image: top and bottom seem parallel, left and right not → so one pair → trapezoid

Wait — let me re-express based on typical worksheet answers.

Actually, let me think like a student doing this:

Common answers for such worksheets:

1) rectangle
2) trapezoid
3) rectangle (or sometimes called parallelogram, but correctly it's rectangle)
But wait — in many curricula, if it’s not aligned, they still call it rectangle if angles are right.

However, looking at #3: it’s drawn as a rectangle rotated 45 degrees? No — actually, in the image, #3 is a rectangle tilted, but angles are still 90 degrees.

But let’s check online or standard practice.

Alternatively, perhaps #3 is meant to be a parallelogram? No — because rectangles are parallelograms, but we use more specific name.

I think I need to commit.

Let me assign based on strict definition:

Shape 1: 4 right angles, opposite sides equal → rectangle
Shape 2: one pair parallel → trapezoid
Shape 3: 4 right angles → rectangle
Shape 4: 4 equal sides, 4 right angles → square
Shape 5: one pair parallel (left/right vertical) → trapezoid
Shape 6: 4 equal sides, no right angles → rhombus
Shape 7: two pairs parallel, no right angles → parallelogram
Shape 8: 4 right angles → rectangle
Shape 9: no parallel sides → quadrilateral
Shape 10: one pair parallel (top/bottom?) — actually, in #10, top and bottom look parallel, left and right not → trapezoid
Shape 11: two pairs parallel, slanted → parallelogram
Shape 12: 4 right angles, tilted → rectangle

But now I have too many rectangles. Let’s count how many of each type there should be.

The word bank has: rhombus, quadrilateral, rectangle, square, trapezoid, parallelogram — 6 terms, 12 shapes, so some repeat.

Typical distribution:

- Rectangles: 1,3,8,12 → 4
- Trapezoids: 2,5,10 → 3
- Parallelograms: 7,11 → 2
- Rhombus: 6 → 1
- Square: 4 → 1
- Quadrilateral: 9 → 1

That adds up to 12.

Is #9 really having no parallel sides? In the image, it looks like a random 4-sided shape with no parallels → yes, quadrilateral.

#5: if left and right are vertical, they are parallel, so trapezoid.

#10: similarly, if top and bottom are parallel, trapezoid.

Yes.

So final assignment:

1) rectangle
2) trapezoid
3) rectangle
4) square
5) trapezoid
6) rhombus
7) parallelogram
8) rectangle
9) quadrilateral
10) trapezoid
11) parallelogram
12) rectangle

But wait — is #3 really a rectangle? In some worksheets, they might consider it a parallelogram if it's not axis-aligned, but mathematically, it's still a rectangle.

To confirm: a rectangle is defined by having four right angles, not by orientation. So yes.

Similarly, #12 is also a rectangle.

Okay, I think this is correct.

Final Answer:
1) rectangle
2) trapezoid
3) rectangle
4) square
5) trapezoid
6) rhombus
7) parallelogram
8) rectangle
9) quadrilateral
10) trapezoid
11) parallelogram
12) rectangle