2D Mystery
I have 3 sides and 3 corners.
What shape am I?
Triangle
I have 0 vertices, 2 curved edges, and 2 flat circle faces.
Who am I?
Cylinder
Before you built your 3D shapes, you had a flat paper pattern with lines for folding. In Math, what is the special name for this flat pattern?
Net
You are building a tower. You have a cube, a cylinder, and a cone. Which shape must go at the very top?
A Cone.
True.
What is a polygon?
A polygon is a flat shape with straight sides. They connect to form a closed shape. They have vertices.
Name three real-life examples of a rectangular prism?
To build a square-based pyramid, you need 4 triangles for the sides. What is the one shape you need for the bottom?
A square.
Which shape has fewer vertices: a square-based pyramid or a cube?
A square-based pyramid.
I can build a cube using 4 squares and 2 rectangles. True or false?
False. A cube must be 6 squares.
If you place 2 identical triangles together, what shape do you make?
Rhombus
I am a 3D object.
I have 1 vertex at the top and 0 vertex at the bottom. I have 1 flat face at the bottom.
Who am I?
Cone
You are looking at a net that has 6 equal square. If you fold at every line and tape it, what shape do you build?
Cube
I have 12 edges and 8 corners, just like a cube. But my faces are long rectangles, what am I?
A rectangular prism.
A hexagon has less vertices than a square-based pyramid. Is this true or false?
False. Hexagon has 6. Pyramid has 5.
If you place 2 identical trapezoids bottom to bottom, what shape do you make?
Hexagon
You are using toothpicks and clay to build a square-based pyramid. You have finished the square bottom. How many more clay pieces do you need to finish the pyramid?
1
What is a net?
A net is what a 3D shape would look like if it was unfolded.
If you need a shape that can roll and has flat faces to stand on, which shapes would you choose: a sphere, a cube or a cylinder?
A cylinder.
An octagon has the same number of vertices as a cube. Is this true or false?
True.
I am a polygon with 8 equal sides.
If I lose 3 of my sides, what shape do I become?
Pentagon
If a cube has 12 edges, does the rectangular prism have more, fewer, or the same amount of edges?
The same amount (12 edges).
You have a net that shows 2 triangles and 3 rectangles. When you fold it, how many vertices will your 3D shape have?
6
You have a cylinder and a triangular prism in a box. How many flat faces are in the box in total?
7 faces (2 from the cylinder + 5 from the prism).
if you put two cubes together side-by-side to make a long prism, the new shape will have 16 vertices. Is this true of false?
False. Still 8 Vertices.