Free Math Games and Math Worksheets: Free Crossword Puzzles ... - Free Printable

Explanation:
Let’s solve the crossword puzzle step by step using the clues and the Word Bank.

First, note that “RHOMBUS” is already filled in vertically (clue #6 Across), so we can use that to help locate other words.

We’ll go clue by clue:

ACROSS:
1. Closed shapes with 3 or more sides. → This is the definition of Polygons (plural). The word bank has “Polygons”. Let’s check length: P-O-L-Y-G-O-N-S = 8 letters. Looking at the grid, Across #1 starts at top-left and goes right — it has 8 squares (including the yellow one at the end), so fits. ✔ So Across 1 = Polygons

2. A 12-sided polygon. → From word bank: Dodecagon (D-O-D-E-C-A-G-O-N = 9 letters? Wait — let's count: D(1) O(2) D(3) E(4) C(5) A(6) G(7) O(8) N(9) → 9 letters). But clue says 12-sided — yes, dodecagon is correct term. Check grid: Across #2 is horizontal, starts after some down entries. Look at the grid: Across #2 has 9 boxes — matches “Dodecagon”. ✔ So Across 2 = Dodecagon

3. ____ is fun! → Likely a playful fill-in. Word bank has “Math”. M-A-T-H = 4 letters. Check grid: Across #3 is short — only 4 squares (we see it’s intersecting with Down #1 and Down #3). Yes, fits. And “Math is fun!” is a common phrase. ✔ So Across 3 = Math

4. A quadrilateral with opposite sides that are parallel. → That’s a Parallelogram. Word bank has it. Count letters: P-A-R-A-L-L-E-L-O-G-R-A-M = 13 letters. Check grid: Across #4 is long — looks like 13 boxes. Yes. ✔ So Across 4 = Parallelogram

5. A 9-sided polygon. → Word bank: Nonagon (N-O-N-A-G-O-N = 7 letters). Wait — nonagon is 7 letters, but 9-sided? Yes, “nona-” = 9, and the word is *nonagon* (7 letters). Let’s verify grid: Across #5 is horizontal, appears to be 7 squares. Yes. ✔ So Across 5 = Nonagon

6. Already given as RHOMBUS (vertical, Down? Actually it's written vertically on left side, labeled #6, and it's filled in red — matches clue Across #6? Wait, the clue says “6. A quadrilateral with 4 sides that are right angles; 2 of its sides are opposite and parallel. (A square is an example…)” — that describes a Rectangle! But RHOMBUS is already placed vertically, and the clue for Across #6 says that description — but RHOMBUS doesn’t have right angles (unless it’s a square). Hmm — let’s re-read.

Wait! The instructions say: “‘RHOMBUS’ is done for you.” And in the grid, on the far left, vertical, letters R-H-O-M-B-U-S are filled in red, and labeled “6” on the left — that means it’s Down clue #6, not Across. Let’s check the clue list:

In the DOWN column:
6. A quadrilateral with only one pair of parallel sides. → That’s a Trapezoid
But the filled-in RHOMBUS is 7 letters, and Down #6 is 7 letters — so Down #6 must be RHOMBUS. But the clue for Down #6 says: “A quadrilateral with only one pair of parallel sides.” That’s *not* rhombus — rhombus has *two* pairs of parallel sides.

Ah — there’s a mismatch. Let’s double-check the clues:

Actually, looking again:

DOWN clues:
1. An 8-sided polygon. → Octagon (8 letters)
2. A 6-sided polygon. → Hexagon (6)
3. A polygon with 3 sides. → Triangle (7? T-R-I-A-N-G-L-E = 8) Wait no — triangle = 7 letters? T-R-I-A-N-G-L-E = 8? Let's count: T(1) R(2) I(3) A(4) N(5) G(6) L(7) E(8) — yes 8. But polygon with 3 sides is Triangle — 7 letters? No, it's 7? Wait: T-R-I-A-N-G-L-E → that’s 8. But “triangle” is 7 letters: T-R-I-A-N-G-L-E? No — let's spell carefully: T-R-I-A-N-G-L-E → that’s 8 characters. But standard spelling is triangle = 7 letters? Let me write: T (1), R (2), I (3), A (4), N (5), G (6), L (7), E (8) — oh! It *is* 8 letters. Okay.

But maybe we should instead match grid positions.

Better approach: Use the filled-in RHOMBUS (7 letters, vertical) — it must correspond to a down clue of length 7.

Look at DOWN clues:
1. 8-sided → Octagon (8)
2. 6-sided → Hexagon (6)
3. 3 sides → Triangle (8)
4. 10-sided → Decagon (7? D-E-C-A-G-O-N = 7) — decagon is 7 letters! And 10-sided polygon → yes, decagon = 10 sides, 7 letters.
5. 4 sides → Square (5) or Rectangle (8) or Rhombus (7)
6. quadrilateral with only one pair of parallel sides → Trapezoid (8)
7. quadrilateral with four equal sides → Rhombus (7) ✔

So Down #7 = Rhombus. And in the grid, the vertical word on left labeled “6” — but maybe the numbering is off? Wait, in the grid, the left vertical word is labeled “6” on the side, and it's RHOMBUS — so likely the clue numbering in the sheet has Down #6 as rhombus, but the printed clue says something else. However, the problem says “‘RHOMBUS’ is done for you”, so we accept that as given, and use it to deduce intersections.

Let’s instead solve using intersections.

We already placed:
- Across 1: Polygons (8 letters) — top row.
- Across 3: Math (4 letters) — intersects Down #1 and Down #3.
- The vertical RHOMBUS is on the far left, starting at row of Across #6? Actually, looking at grid: the leftmost column has letters R, H, O, M, B, U, S stacked, with number 6 to the left — so it's Down 6, 7 letters.

Now, Down 6 clue says: “A quadrilateral with only one pair of parallel sides.” But rhombus has two pairs. Contradiction — unless the worksheet has a typo. But since RHOMBUS is pre-filled, we assume Down 6 = RHOMBUS, and ignore the mismatched clue — maybe the clue list has a misnumber.

Let’s proceed with word bank matching by length and logic:

Word Bank list:
- Square (5)
- Hexagon (6)
- Rectangle (8)
- Octagon (6)
- Polygons (8)
- Dodecagon (9)
- Parallelogram (13)
- Trapezoid (8)
- Nonagon (7)
- Decagon (7)
- Pentagon (7)
- Quadrilateral (13)
- Septagon (7) — though septagon is rare; usually heptagon, but okay.

Now assign:

Across:
1. 8 letters → Polygons ✔
2. 9 letters → Dodecagon ✔
3. 4 letters → Math ✔
4. 13 letters → Parallelogram ✔
5. 7 letters → Nonagon ✔
6. Clue: “A quadrilateral with 4 sides that are right angles; 2 of its sides are opposite and parallel.” → That’s Rectangle (8 letters). Check grid: Across #6 is horizontal, how many boxes? From grid, it starts after some columns — visually, it looks like 8 boxes. Yes. So Across 6 = Rectangle

7. A 7-sided polygon → Heptagon, but not in word bank. Word bank has Septagon (7 letters) — likely they use “Septagon” for 7-sided. S-E-P-T-A-G-O-N = 8? Wait: S(1) E(2) P(3) T(4) A(5) G(6) O(7) N(8) = 8. Hmm. Alternatively, Pentagon is 7 letters (P-E-N-T-A-G-O-N = 8?) Let's count: P(1) E(2) N(3) T(4) A(5) G(6) O(7) N(8) — 8 again. Something’s off.

Wait — let’s list exact letter counts:
- Square: 5
- Hexagon: 6
- Rectangle: 8
- Octagon: 6
- Polygons: 8
- Dodecagon: 9
- Parallelogram: 13
- Trapezoid: 8
- Nonagon: 7 ✔
- Decagon: 7 ✔
- Pentagon: 7 ✔ (P-E-N-T-A-G-O-N = 8? No! I keep miscounting. Let's type: P E N T A G O N → that's 8 letters. Oh! Actually, "pentagon" is 8 letters. Yes: p-e-n-t-a-g-o-n = 8.
- Quadrilateral: 13
- Septagon: s-e-p-t-a-g-o-n = 8

So which words are 7 letters? Only Nonagon and Decagon are 7? Decagon: D-E-C-A-G-O-N = 7 ✔
Nonagon: N-O-N-A-G-O-N = 7 ✔
So 7-letter polygons: nonagon (9 sides), decagon (10 sides), but clue 5 is 9-sided → nonagon, clue 4 Down is 10-sided → decagon.

Back to Across 7: “A 7-sided polygon.” Word bank doesn’t have heptagon, but has Septagon — maybe they consider it 7 letters? S-E-P-T-A-G-O-N is 8. Unless it's spelled "Heptagon" but not listed. Given the options, likely they expect Septagon even if length mismatches — or perhaps the grid shows 7 boxes for Across 7.

Look at grid: Across 7 is on bottom right, starts at column after 7, goes right — it has 7 white squares before yellow end? Hard to tell, but let’s use Down clues to resolve.

DOWN:
1. 8-sided polygon → Octagon is 6 letters — no. Hexagon=6, Octagon=6, Dodecagon=9. Wait — 8-sided is Octagon? No! 8 sides = octagon → “octo” = 8, and word is octagon = 6 letters. But clue says “An 8-sided polygon” — answer is octagon, regardless of letter count; grid must have 6 boxes for Down 1.

Check grid: Down #1 starts at top of column under Across 1 — it goes down, and we see it intersects Across 3 (Math) at position 2? The grid shows a yellow square at intersection of Across 1 and Down 1 — likely Down 1 is 6 letters → Octagon.

So:
Down 1: Octagon (6)
Down 2: 6-sided → Hexagon (6)
Down 3: 3 sides → Triangle (8) — but 8 boxes? Possibly.
Down 4: 10-sided → Decagon (7)
Down 5: 4 sides → Square (5) or Rectangle (8) — but rectangle used across.
Down 6: Rhombus (7) — given
Down 7: quadrilateral with four equal sides → Rhombus again? But already used. Wait clue 7 Down says: “A quadrilateral with four equal sides. (In 3-D this is called a cube!)” — that’s Rhombus (in 2D). So Down 7 = Rhombus — but RHOMBUS is already placed as Down 6. Maybe the pre-filled is Down 7, and label “6” is a mistake.

Given the time, let’s focus on what’s required: The BONUS RIDDLE at the bottom:

“Using the colored squares, unscramble the letters to make two words:
A polygon is a closed shape that has ________ ________.”

The colored squares: In the grid, yellow squares are at certain positions. Also, on the left, the vertical RHOMBUS has letters in colored (orange) squares: R, H, O, M, B, U, S — but those are red, not yellow.

Look at yellow squares in grid: There are several yellow cells — likely they contain letters that spell something.

From the grid image (as described): Yellow squares are at:
- End of Across 1 (1 letter)
- Across 2 has a yellow at position ? — but more reliably: The bonus says “using the colored squares”, and in the left margin, the word “Candy Coloring Pages” is written vertically in pink, and the RHOMBUS is in red/orange.

But notice: The letters in the yellow squares — if you collect them in order (probably reading left-to-right, top-to-bottom), they spell: THREE SIDES? Or many sides?

Recall the speech bubble: “Did you know that the prefix ‘POLY-’ means ‘many’ in Greek?”

And the definition: “A polygon is a closed shape that has ___ ___.”

Standard definition: “A polygon is a closed shape that has three or more sides.” But the blank has two words, and “three or more” is three words.

Alternatively: “many sides” — two words, and matches the ‘poly = many’ hint.

Yes! The riddle is pointing to the etymology: poly = many, gon = angle/shape → so polygon = many sides.

So the two words are: many sides

Final check: Colored squares — likely the yellow squares spell M-A-N-Y S-I-D-E-S, but even if not, the logical answer based on the hint is “many sides”.

Thus, bonus riddle answer: many sides

Final Answer:
many sides