Question 3 of 3intermediate✨ CreateShort Answer5 marks

Take a cardboard sheet and try to make an object with four faces. Now, try to make an object with one face.

Correct Answer

Object with four faces: An object with four faces can be made by folding cardboard into a tetrahedron (triangular pyramid). A tetrahedron has 4 triangular faces.

Object with one face: An object with one face can be made by bending cardboard into a curved shape like a sphere approximation. Alternatively, a balloon has one continuous curved surface.

Exercise: Project Work | Q: 1 | (Page Page 7)
For More Understanding

Explanation

This project work encourages children to explore 3D shapes hands-on. A tetrahedron (triangular pyramid) has 4 triangular faces. A sphere has only one continuous curved face. Students may use clay or dough to create these shapes if cardboard is difficult to shape. This activity helps children understand how faces come together to form 3D objects.

Solution Steps

  1. An object with four faces can be made by folding cardboard into a tetrahedron (triangular pyramid).

  2. A tetrahedron has 4 triangular faces.

  3. An object with one face can be made by bending cardboard into a curved shape like a sphere approximation.

  4. Alternatively, a balloon has one continuous curved surface.

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