2nd Grade Math Worksheets - Geometry - Recognizing Shape ... - Free Printable

Let’s solve each riddle one by one. We’ll read the clues and match them to the correct 3D shape from the pictures given under each riddle.

---

Riddle 1 (top left):
> I have no flat surfaces.
> I have no edges.
> I can roll.

→ Only a sphere has no flat surfaces, no edges, and can roll in any direction.
✔ Answer: Sphere

---

Riddle 2 (top middle):
> I have 6 faces.
> Each of my faces is a square.
> I have 12 edges.

→ A cube has 6 square faces and 12 edges.
✔ Answer: Cube

---

Riddle 3 (top right):
> I have 6 faces.
> Some of my faces are rectangles.
> I have 12 edges.

→ This describes a rectangular prism (also called a cuboid). It has 6 rectangular faces (some may be squares, but not all), and 12 edges.
✔ Answer: Rectangular Prism

---

Riddle 4 (bottom left):
> I have one circle face.
> I have one vertex.
> I cannot be stacked.

→ A cone has one circular base (face) and one pointy top (vertex). You can’t stack cones neatly on top of each other without them falling over.
✔ Answer: Cone

---

Riddle 5 (bottom middle):
> I have two flat surfaces that are circles.
> I can roll.
> I have no corners.

→ A cylinder has two circular flat ends and can roll on its curved side. No corners — just smooth curves.
✔ Answer: Cylinder

---

Riddle 6 (bottom right):
> I have 5 faces and 8 edges.
> I cannot be stacked.
> I have one vertex.

→ Wait — let’s check this carefully.
A square pyramid has:
- 5 faces (1 square base + 4 triangular sides)
- 8 edges (4 around the base + 4 going up to the apex)
- 1 vertex at the top (apex) — actually, it has 5 vertices total! But maybe the riddle means “one top vertex” or is simplifying? Hmm.

But wait — does it say “I have one vertex”? That might be misleading. Actually, a square pyramid has 5 vertices: 4 at the base and 1 at the top.

Let’s re-read:
> I have 5 faces and 8 edges. → Matches square pyramid.
> I cannot be stacked. → True, pyramids don’t stack well.
> I have one vertex. → This is probably referring to the *apex* — the single point at the top. In kid-friendly terms, they might mean “one pointy top.”

Looking at the picture options for this riddle:
It shows a square pyramid, a rectangular prism, and a cone.
The only one with 5 faces and 8 edges is the square pyramid.

Even though technically it has 5 vertices, in early education, sometimes “vertex” is used loosely to mean “pointy tip.” So we go with context.

✔ Answer: Square Pyramid

---

Now, let’s list all answers clearly:

Final Answer:
Top row: Sphere, Cube, Rectangular Prism
Bottom row: Cone, Cylinder, Square Pyramid