Solve Exercise 2 Page 112 Math 5

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Ngày cập nhật gần nhất: 15/4/2026

Solve Exercise 2 on page 112 of Math 5 Workbook, which cover design can be folded into a cube?

Guidance for solving Exercise 2 Page 112 Math 5

Problem Statement:
Which cover design below can be folded into a cube?

Solution Method:
Method 1: Draw the figure on paper, fold it, and answer the question.
Method 2: Inference:
- Figure 1: By visual inspection, we can infer that it cannot be folded into a cube.
- Figure 2: Folding the row of 4 squares at the bottom into 4 surrounding faces => The 2 squares on top will overlap, not forming a top and bottom face.
=> Figure 2 cannot be folded into a cube.
- Figure 3 and Figure 4: Can be folded into a cube as folding the row of 4 squares in the middle into 4 surrounding faces => 2 squares on top and bottom will form the top and bottom faces.

Answer:
Only Figure 3 and Figure 4 can be folded into a cube.

Section Mathematics Grade 5 Page 112 includes 3 exercises. After solving Exercise 2 on page 112 Math 5 Workbook, please continue to see hints and methods for Solving Exercise 1 Page 112 Math 5 and Solving Exercise 3 Page 112 Math 5 to improve your understanding of Grade 5 mathematics.

Frequently Asked Questions

What is the main objective of Exercise 2 in the Math 5 Workbook?

The main objective of Exercise 2 is to determine which cover designs can be folded into a cube, encouraging students to use visual inspection and practical folding methods.

What methods can be used to solve Exercise 2 on page 112?

To solve Exercise 2, you can use Method 1 by drawing the figures and folding them on paper, or Method 2, which involves visual inference based on the arrangement of squares in the figures.

Which figures from Exercise 2 can successfully be folded into a cube?

Only Figure 3 and Figure 4 can be folded into a cube. In these figures, the arrangement allows the squares to form the top, bottom, and surrounding faces without overlapping.

How does Figure 2 fail to meet the criteria for a cube?

Figure 2 fails because when folding the four squares, the top two squares overlap instead of forming distinct top and bottom faces, thus making it impossible to create a cube.

What should students do after completing Exercise 2 in the Math 5 Workbook?

After completing Exercise 2, students should continue with the hints and methods provided for solving Exercise 1 and Exercise 3 on page 112 to further enhance their understanding of Grade 5 mathematics.

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