NCERT Solutions for Class 5 Maths Chapter 9 Boxes and Sketches

Understanding how three-dimensional objects are represented on a two-dimensional surface is a fundamental skill in geometry and architecture. In the NCERT solutions for class 5 maths chapter 9 introduces students to the concepts of nets, deep drawings, and floor plans. This chapter helps children visualize how flat shapes can be folded into 3D boxes and how complex buildings can be represented through simple sketches.

Finding high-quality boxes and sketches class 5 question answer guide is essential for mastering these spatial visualization skills. 

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Introduction: From 2D to 3D

Everything around us has a shape. Some shapes are flat (2D), like a square or a triangle on a piece of paper, while others are solid (3D), like a dice or a shoebox.

Key Concepts:

• Net: A 2D shape that can be folded to form a 3D object.

• Deep Drawing: A 3D representation of an object that shows its length, width, and height.

• Floor Plan: A 2D overhead view of a house or building showing where the walls, doors, and windows are located.4

Textual Solutions: Boxes and Sketches Class 5 Question Answer

The following solutions cover the core activities of the chapter, helping you complete your boxes and sketches class 5 question answer assignments with ease.

Activity: Sweet Boxes

Ramya went to buy sweets and saw a beautiful box. When she opened it, it became a flat piece of paper. This flat piece is called a Net.

Q1. Which of these nets can be folded to make a cube?

(The textbook shows several patterns of 6 squares)

Answer: A net can form a cube only if it has 6 faces and the squares are arranged in a way that they don't overlap when folded. The "Cross" shape and the "Z" shape are common nets for a cube.

Q2. Look at the shape of an open box. How many faces does it have?

Answer: An open box (without a top) has 5 faces.5

Activity: Dice and Their Nets

A dice is a cube where the numbers on opposite faces always add up to 7.

Q3. If '1' is on the top, which number will be at the bottom?

Answer: Since  1 + 6 = 7 , the number 6 will be at the bottom.

Q4. If '4' is on the left face, which number will be on the right?

Answer: Since  4 + 3 = 7 , the number 3 will be on the right face.

Floor Plans and Deep Drawings

One of the most important parts of this chapter is understanding the difference between a Floor Plan and a Deep Drawing.

Floor Plans

A floor plan is a map of a house. It shows where the rooms are, but it doesn't show how high the walls are or what the house looks like from the outside.

Deep Drawings

A deep drawing is a 3D sketch. It gives us a "deep" look at the object, showing its height and depth.

Q5. Look at a floor plan of a house. Can you tell which deep drawing matches it?

Answer: To match a floor plan with a deep drawing, look for the positions of the windows and doors. If a window is on the left wall in the floor plan, it must also be on the left wall in the deep drawing.

Boxes and Sketches Class 5 Extra Questions with Answers

To sharpen your skills, here are some boxes and sketches class 5 extra questions with answers that go beyond the textbook.

Q1. How many corners (vertices) does a cube have?

Answer: A cube has 8 corners.9

Q2. Can a net with 4 squares make a closed box?

Answer: No, a net with 4 squares can only make a shape with no top and no bottom. To make a closed cube, you need exactly 6 square faces.

Q3. Draw a deep drawing of a cylinder.

Answer: A deep drawing of a cylinder shows two circular bases connected by curved vertical lines.

Visualizing Different Views

Objects look different depending on where you stand.

• Top View: What you see from an airplane looking down.

• Front View: What you see standing directly in front of the object.

• Side View: What you see from the left or right.

Q6. Look at a bridge made of matchboxes. Draw its top view.

Answer: The top view would just look like a series of rectangles joined together, without showing the legs or the height of the bridge.

Fun Activity: Making Your Own Pencil Box

You can use the concepts from this chapter to make a real box!

1. Take a thick sheet of paper.

2. Draw a net consisting of a long rectangle for the base, four rectangles for the sides, and one for the top.

3. Add small "flaps" on the edges so you can glue them together.

4. Cut, fold, and glue!

Summary Table: Shapes and Their Properties

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