Identifying 2D & 3D Shapes & Attributes — Answer Key
Part A: Trace the Words
Trace each word carefully by following the dotted lines.
1. cube
2. sphere
3. cone
4. face
5. edge
6. side
Part B: Fill in the Blank
Write the missing word or number on each line.
1. A circle is a flat 2D shape.
Because a circle can be drawn on paper with only length and width, it is a flat 2D shape. The "D" in 2D stands for "dimensions."
2. A sphere has no corners and no edges.
A sphere is completely round like a ball, so it has no pointy corners or straight edges. Its smooth curved surface never meets at a line or point.
3. A square has four equal sides.
A square is special because all four of its straight sides are exactly the same length. This is what makes it different from a rectangle.
4. A cone is shaped like an ice cream cone.
A cone has a round flat bottom and comes to a point on top, just like an ice cream cone. This is why the shape and the treat share the same name.
Part C: True or False?
Read each statement. Circle True or False.
1. A cube has 6 flat faces.
True False
True, because every cube has a top, a bottom, and four square sides, adding up to 6 flat square faces. Count them on a dice to see.
2. A circle is a 3D shape.
True False
False, because a circle lies flat on paper with no thickness, which makes it a 2D shape. A 3D shape you can hold, like a sphere or cube, takes up space.
3. A sphere has no edges.
True False
True, because a sphere is smoothly round all the way around with no flat faces to meet. Without any meeting lines, it cannot have edges.