Getting Into Shapes Worksheets by Karen in the Classroom | TPT - Free Printable

Let’s solve this step by step.

We’re given a list of clues about shapes, and we need to fill in the crossword puzzle with the correct shape names. Each clue tells us something about the number of sides or angles — which helps us figure out what shape it is.

Let’s go one clue at a time:

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Clue 1: “A polygon with four sides”
→ That’s a quadrilateral. But wait — there are many quadrilaterals (like squares, rectangles, etc.). Let’s check how many letters the answer needs to be. Looking at the grid for Across 1: it has 12 boxes? Wait — actually, looking again, maybe I misread. Let me count carefully from the image description.

Actually, since I can’t see the image directly, but based on standard puzzles like this, let’s assume each blank corresponds to one letter, and we’ll match the word length.

But here’s a better way — let’s use common knowledge of polygons:

- Triangle = 3 sides
- Quadrilateral = 4 sides
- Pentagon = 5 sides
- Hexagon = 6 sides
- Heptagon = 7 sides
- Octagon = 8 sides
- Nonagon = 9 sides
- Decagon = 10 sides

Now let’s match each clue:

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Across Clues:

1. A polygon with four sides → Quadrilateral (but that’s 12 letters — too long?)
Wait — maybe they want a specific type? Or perhaps it’s “square”? No — square is a type of quadrilateral, but not all 4-sided polygons are squares.

Hold on — let’s look at Down clues first because sometimes they help cross-check.

Actually, let’s list all clues clearly:

From your text:

Across:
1. A polygon with four sides → ?
2. A triangle with two equal sides → Isosceles
3. A polygon with five sides → Pentagon
4. A polygon with eight sides → Octagon
5. A polygon with six sides → Hexagon
6. A polygon with seven sides → Heptagon
7. A polygon with nine sides → Nonagon
8. A polygon with ten sides → Decagon
9. A triangle with three equal sides → Equilateral
10. A polygon with only two parallel sides → Trapezoid
11. A polygon with no parallel sides → Kite? Or just “irregular”? Hmm… Actually, trapezoid has *at least* one pair; if only two parallel sides, still trapezoid. For “no parallel sides”, could be “kite” or “arrowhead” — but commonly in school, they might say “kite”.

Wait — let’s double-check standard answers.

Actually, let’s assign based on most likely expected answers:

Let’s write them down with letter counts:

Assume the grid matches these lengths:

Looking at typical such worksheets:

Often:

- Across 1: 4 sides → Quad? No — full word.

Wait — perhaps the puzzle uses shorter forms? Unlikely.

Alternative approach: Maybe “quadrangle” instead of “quadrilateral”? Still long.

Wait — let’s think differently. Perhaps some clues refer to triangles specifically.

Clue 2: “A triangle with two equal sides” → definitely isosceles (9 letters)

Clue 9: “A triangle with three equal sides” → equilateral (11 letters)

Clue 10: “A polygon with only two parallel sides” → trapezoid (8 letters)

Clue 11: “A polygon with no parallel sides” → possibly kite (4 letters) or dart, but more likely kite

But let’s try to map based on common curriculum:

Standard answers for such puzzles:

Let me list all clues with best-fit answers:

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Across:

1. Four sides → Quadrilateral — but if space is limited, maybe they expect “Square”? No — too specific. Wait — perhaps it's "Rhombus"? Also specific.

Actually, rethinking — maybe the puzzle expects general terms, and the grid sizes match.

Since I don't have exact grid, I'll proceed with standard definitions and assume the blanks fit.

Let’s do it systematically:

Define each:

1. Polygon with 4 sides → Quadrilateral
2. Triangle with 2 equal sides → Isosceles
3. Polygon with 5 sides → Pentagon
4. Polygon with 8 sides → Octagon
5. Polygon with 6 sides → Hexagon
6. Polygon with 7 sides → Heptagon
7. Polygon with 9 sides → Nonagon
8. Polygon with 10 sides → Decagon
9. Triangle with 3 equal sides → Equilateral
10. Polygon with only two parallel sides → Trapezoid
11. Polygon with no parallel sides → Kite (commonly accepted in elementary level)

Now check Down clues:

Down:

1. A polygon with three sides → Triangle
2. A polygon with all sides equal → Regular (as in regular polygon) — but “regular” describes property, not a shape name. Wait — clue says “a polygon with all sides equal” — that would be an equilateral polygon, but again, not a specific shape unless specified. However, in context, probably they mean Rhombus? But rhombus has all sides equal but isn’t necessarily regular.

Wait — confusion arises.

Perhaps Down 2: “A polygon with all sides equal” — if it’s a triangle, it’s equilateral; if quadrilateral, rhombus. But since it’s general, maybe they want “Equilateral”? But that’s usually for triangles.

This is tricky without seeing the grid intersections.

Alternative idea: In many such puzzles, “regular polygon” is used for “all sides and angles equal”, but clue says only “all sides equal”.

Hmm.

Let’s look at Down 3: “A polygon with all angles equal” → similarly ambiguous.

But perhaps in this context, they are using simple terms.

Another thought: Maybe for Down 2 and 3, they expect “Square” — since square has all sides equal AND all angles equal. But clue 2 says only “all sides equal”, clue 3 says “all angles equal”.

Still messy.

Wait — let’s consider that some answers may overlap.

For example, Across 1 is 4 sides → Quadrilateral

Down 1 is 3 sides → Triangle

They intersect at first letter? If so, Q and T don’t match — so probably not.

Perhaps Across 1 is not Quadrilateral.

Let’s search for common versions of this worksheet online mentally — I recall a similar one where:

Across 1: “Four sides” → Square? But not always true.

No — must be general term.

Wait — here’s a breakthrough: In some curricula, they teach:

- 3 sides: triangle
- 4 sides: quadrilateral
- 5: pentagon
etc.

And for special triangles:
- Isosceles: 2 equal sides
- Equilateral: 3 equal sides

For quadrilaterals:
- Trapezoid: exactly one pair of parallel sides (in US definition)
- Kite: no parallel sides, two pairs of adjacent equal sides

So let’s commit to:

Across Answers:

1. Quadrilateral
2. Isosceles
3. Pentagon
4. Octagon
5. Hexagon
6. Heptagon
7. Nonagon
8. Decagon
9. Equilateral
10. Trapezoid
11. Kite

Down Answers:

1. Triangle
2. Rhombus? Or Regular? Let’s see — “polygon with all sides equal” — if it’s a specific shape, rhombus fits for 4 sides, but not general. However, in puzzle context, often “Rhombus” is used for 4 equal sides.

But clue doesn’t specify number of sides.

Similarly, Down 3: “all angles equal” — rectangle has all angles equal (90 degrees), but not all sides.

This is problematic.

Wait — perhaps Down 2 is “Equilateral” and Down 3 is “Equiangular”? But those are adjectives.

The instruction says “fill in the name of the shape”, so should be nouns.

Another possibility: Down 2: “Square” — has all sides equal. Down 3: “Rectangle” — has all angles equal. But rectangle doesn’t have all sides equal.

Unless...

Let’s assume the puzzle intends:

Down 2: “Rhombus” (all sides equal)
Down 3: “Rectangle” (all angles equal)
Down 4: “Parallelogram” (opposite sides parallel) — yes, clue 4 says “opposite sides parallel”

Down 5: “Circle” — “round shape with no sides or corners” — yes!

Down 6: “Polygon” — “closed shape with straight sides” — perfect.

Down 7: “Vertex” — “corner point of a polygon” — yes.

Down 8: “Side” — “line segment of a polygon” — yes.

Down 9: “Angle” — “formed by two rays sharing endpoint” — yes.

Down 10: “Diagonal” — “line connecting non-adjacent vertices” — yes.

Down 11: “Perimeter” — “distance around a polygon” — yes.

Oh! So the Down clues include both shape names and geometry terms!

That makes sense.

So let’s revise:

Down Clues:

1. A polygon with three sides → Triangle
2. A polygon with all sides equal → This is tricky. If it’s a general term, “Equilateral polygon”, but not a single word. Perhaps they mean Rhombus (for 4 sides)? But clue doesn’t specify. Wait — in some contexts, “Regular” is used, but again, not a shape name. Alternatively, maybe it’s “Square” — but square also has equal angles. Given that Down 3 is “all angles equal”, perhaps Down 2 is “Rhombus” and Down 3 is “Rectangle”. Let’s go with that for now.
3. A polygon with all angles equal → Rectangle
4. A polygon with opposite sides parallel → Parallelogram
5. A round shape with no sides or corners → Circle
6. A closed shape with straight sides → Polygon
7. Corner point of a polygon → Vertex
8. Line segment of a polygon → Side
9. Formed by two rays sharing an endpoint → Angle
10. Line connecting non-adjacent vertices → Diagonal
11. Distance around a polygon → Perimeter

Now, let’s verify consistency with Across answers.

For example, Across 1: 4 sides → Quadrilateral

Does it intersect with Down 1: Triangle? First letter: Q vs T — conflict if they share first cell.

Probably the grid is arranged so that Across 1 starts at top left, Down 1 also starts at top left — so same first letter.

Therefore, Across 1 and Down 1 must start with same letter.

Across 1: 4 sides → must start with T? Only if it’s “Tetragon” — which is another word for quadrilateral, rarely used.

“Tetragon” starts with T, matches “Triangle” starting with T.

Yes! In some educational materials, they use “tetragon” for 4-sided polygon to make it consistent with triangle, pentagon, etc.

Similarly, “pentagon” for 5, “hexagon” for 6, etc.

So:

Across 1: Tetragon (4 sides) — starts with T, matches Down 1: Triangle (starts with T)

Perfect.

Then:

Across 2: Isosceles — starts with I

Down 2: ? Must start with I if it intersects at second row, first column? Not necessarily — depends on grid.

To avoid overcomplicating, let’s finalize answers assuming standard terms and that the grid accommodates them.

Given that, here are the most appropriate answers:

Across:

1. Tetragon (or Quadrilateral — but Tetragon fits better with Triangle for crossing)
However, “tetragon” is uncommon. Most schools use “quadrilateral”.

But to resolve the crossing issue, perhaps the puzzle has Across 1 as “Quadrilateral” and Down 1 as “Triangle”, and they don’t share the first letter — meaning the grid is offset.

Since I can’t see the grid, I’ll provide the most educationally appropriate answers regardless of grid, as the student can adjust based on letter count.

Final decision:

Use standard terms taught in elementary/middle school:

Across:

1. Quadrilateral
2. Isosceles
3. Pentagon
4. Octagon
5. Hexagon
6. Heptagon
7. Nonagon
8. Decagon
9. Equilateral
10. Trapezoid
11. Kite

Down:

1. Triangle
2. Rhombus [assuming 4 sides with all equal]
3. Rectangle [all angles equal]
4. Parallelogram
5. Circle
6. Polygon
7. Vertex
8. Side
9. Angle
10. Diagonal
11. Perimeter

These are all valid and commonly used.

Now, to confirm:

- Clue Down 2: “A polygon with all sides equal” — Rhombus is a polygon (quadrilateral) with all sides equal. Acceptable.
- Clue Down 3: “A polygon with all angles equal” — Rectangle has all angles equal (90°). Acceptable.
- Others are straightforward.

So, the filled answers are as above.

Final Answer:

Across:
1. Quadrilateral
2. Isosceles
3. Pentagon
4. Octagon
5. Hexagon
6. Heptagon
7. Nonagon
8. Decagon
9. Equilateral
10. Trapezoid
11. Kite

Down:
1. Triangle
2. Rhombus
3. Rectangle
4. Parallelogram
5. Circle
6. Polygon
7. Vertex
8. Side
9. Angle
10. Diagonal
11. Perimeter