2 D shapes - polygons worksheet - Free Printable

Let's go through each shape in the worksheet and identify the correct answer with explanations.

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1. First Row:

Shape: A six-sided polygon
Options:
a. pentagon
b. hexagon ✔
c. octagon

✔ Correct Answer: b. hexagon
*Explanation:* A hexagon has 6 sides. This shape has 6 straight sides, so it’s a hexagon.

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Shape: A cone (pointed top, circular base)
Options:
a. cone ✔
b. pyramid
c. triangle

✔ Correct Answer: a. cone
*Explanation:* A cone has a circular base and tapers to a point. This matches the shape shown.

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2. Second Row:

Shape: A 3D cube (appears as two squares joined at an angle)
Options:
a. rectangle
b. square
c. cube ✔

✔ Correct Answer: c. cube
*Explanation:* This is a 3D object with six square faces — a cube.

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Shape: A diamond-shaped figure (rotated square)
Options:
a. rectangle
b. square ✔
c. diamond

✔ Correct Answer: b. square
*Explanation:* Even though it’s rotated, it has four equal sides and right angles — it's a square. "Diamond" is informal; geometrically, it's a square.

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3. Third Row:

Shape: A parallelogram with slanted sides
Options:
a. diamond
b. rhomboid ✔
c. rectangle

✔ Correct Answer: b. rhomboid
*Explanation:* A rhomboid is a parallelogram where opposite sides are parallel and equal, but angles are not 90°. It's not a rectangle or diamond (which implies a rhombus). So “rhomboid” fits best.

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Shape: An oval (stretched circle)
Options:
a. circle
b. oval ✔
c. sphere

✔ Correct Answer: b. oval
*Explanation:* This is a 2D elongated curve — an oval. Not a circle (perfectly round), nor a sphere (3D).

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4. Fourth Row:

Shape: A cylinder (two circles connected by a curved surface)
Options:
a. cylinder ✔
b. prism
c. oval

✔ Correct Answer: a. cylinder
*Explanation:* A cylinder has two circular bases and a curved side — this matches perfectly.

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Shape: A five-sided polygon
Options:
a. octagon
b. hexagon
c. pentagon ✔

✔ Correct Answer: c. pentagon
*Explanation:* A pentagon has 5 sides. This shape has 5 sides.

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5. Fifth Row:

Shape: A sphere (round 3D object)
Options:
a. oval
b. sphere ✔
c. circle

✔ Correct Answer: b. sphere
*Explanation:* This is a 3D round object — a sphere. A circle is 2D, and an oval is elongated.

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Shape: A pyramid with a triangular base
Options:
a. prism
b. pyramid ✔
c. cone

✔ Correct Answer: b. pyramid
*Explanation:* This is a 3D shape with a triangular base and three triangular faces meeting at a point — a triangular pyramid.

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✔ Final Answers Summary:

| Shape | Correct Answer |
|-------|----------------|
| 1. Six-sided polygon | b. hexagon |
| 2. Cone | a. cone |
| 3. Cube | c. cube |
| 4. Rotated square | b. square |
| 5. Slanted parallelogram | b. rhomboid |
| 6. Oval | b. oval |
| 7. Cylinder | a. cylinder |
| 8. Five-sided polygon | c. pentagon |
| 9. Sphere | b. sphere |
| 10. Pyramid | b. pyramid |

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