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Questions and Answers
Which 3-D object has six identical square faces?
Which 3-D object has six identical square faces?
- Cone
- Cube (correct)
- Cylinder
- Sphere
What is the base shape of a cone?
What is the base shape of a cone?
- Square
- Circle (correct)
- Triangle
- Rectangle
Which of these 3-D objects is NOT a prism?
Which of these 3-D objects is NOT a prism?
- Sphere (correct)
- Rectangular prism
- Cylinder
- Cube
In 3-D objects, what is the term for a flat surface?
In 3-D objects, what is the term for a flat surface?
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Which of these objects are pyramids?
Which of these objects are pyramids?
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What is the point called where two or more edges meet in a 3-D object?
What is the point called where two or more edges meet in a 3-D object?
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Study Notes
3-D Objects
- A cube is a 3-D object with six identical square faces.
- A pyramid can be triangular or square-faced.
- A cylinder is a 3-D object with two parallel and circular bases.
- A cone is a 3-D object with a circular base and a curved surface.
- A sphere is a 3-D object with a curved surface.
- A rectangular prism is a 3-D object with six rectangular faces.
Characteristics of 3-D Objects
- A cube has six identical square faces.
- The base of a cone is a circle.
- Prisms have two identical flat surfaces.
- A sphere has a curved surface.
Prisms and Pyramids
- Rectangular prisms are a type of prism.
- A prism has two identical flat surfaces.
- Pyramids can be triangular or square-faced.
Faces, Edges, and Vertices
- A face is the flat surface of a 3-D object.
- An edge is the line where two faces of a 3-D object meet.
- A vertex is the point where two or more edges of a 3-D object meet.
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