Boxes and Sketches Class 5 JKBOSE Solutions

“Boxes and Sketches” is Chapter 9 from Merry Math V for students of Class 5th of JKBOSE. This post is about Boxes and Sketches Class 5 JKBOSE Solutions. You read about Mapping Your Way Class 5 JKBOSE Solutions in a previous post. Let’s get started:

Boxes and Sketches Class 5 JKBOSE Solutions

Page No. 135 Solutions

Ulfat went to buy sweets. The shopkeeper took a paper cut-out and quickly made a lovely pink for the sweets!

Look at the photo and make your own box. Use the cutout on the page. How fast can you fold it?

After coming home Ulfat unfolded the box. She removed the extra flaps so the cut–out looked like this.

She made four shapes. Each is to be folded along the dotted lines. You have to find out which of these can be made into a box.

Ans. A, b and c can be folded to make a box.

Page No. 136 Solutions

1. Javaid wants to make a paper cube using a squared sheet. He knows that all the faces of a cube are squares. He draws two different shapes.

1) Will both these shapes fold into a cube?

Ans. Yes, both shapes will fold into a cube.

2) Draw at least one more shape which can fold into a cube.

Ans.

3) What will be the area of each face of the cube?

Ans. The area of each face of the cube = side × side.

4) Draw one shape which will not fold into a cube.

Ans. The following shape will not fold into a cube.

5) Look around and discuss which things around you look like a cube. List a few.

Ans. The chalk box, dice, ice cubes and sugar cubes look like a cube.

Page No. 138 Solutions

Boxes and Shapes

All boxes are not cubes. Here are some different kinds of boxes. Match each shape below with a box into which it will fold.

Ans.

Page No. 138 – 139 Solutions

Floor maps:

For making a house a floor map is first made. Have you ever seen a floor map? Here is a floor map of Vibha’s house. It shows where the windows and the doors are in the house.

Which is the front side of her house? How many windows are there on the front side?

Ans. The front side of her house is the side that contains the door, as shown in the figure. There are two windows on the front side.

Here are four deep drawings of houses.

Which one is Ahmad’s house?

Ans. Deep drawing (c) shows Ahmad’s house.

Why do the other three deep drawings not match the floor map? Discuss.

Ans. Deep drawing (a) does not represent the given floor map because at the back side, a straight wall is shown.

Deep drawing (b) does not represent the given floor map because of the window on the right wall.

Deep drawing (d) does not represent the given floor map because there is equal side width on both sides of the window.

Page No. 139 – 140 Solutions

Practice Time

1. Look at this map of a house. Make doors and windows on the deep drawings of this house.

Ans.

Are there any windows you couldn’t show on the deep drawings? Circle them on the floor map.

Ans. Yes, there are two windows which couldn’t be shown on the deep drawing. These are shown as encircled on the floor map.

2. Try to make a floor map of your own house.

Ans. Students should try to make it themselves.

A Deep Drawing of a Cube

Altaf and his friends made deep drawings of a cube. These are their drawings.

Which of the drawings looks correct to you? Discuss.

Ans. The drawings (d) and (e) look correct to me.

Can you add some lines to make a drawing (f) into a deep drawing of the cube?

Ans. Yes, I can add some lines to make a drawing (f) into a deep drawing of the cube as shown.

Puzzle

This cut–out is folded to make a cube.

Which of these are the correct deep drawings of that cube?

Ans.  (a), (d) and (e) are the correct deep drawings of the cube made out of the given cut-out.

Page No. 141 – 142 Solutions

Matchbox Play

Irfan, Zubair and Sheeba make this bridge using matchboxes.

Irfan and Sheeba made drawings of the bridge.

If you look at the bridge from the top, how will it look? Choose the right drawing below:

Ans. It will look like the drawing (b).

Look at the photo and try to make a deep drawing of this bridge.

Ans. Students should try to make it themselves.

Page No. 143 Solutions

Practice Time

1. Make drawings to show how the bridge will look

• From the top
• From the front
• From the side

Ans. Students should try to make it themselves.

2. Make a matchbox model which looks like this.

Also, make a deep drawing of the model in your notebook.

Ans. Students should try to make it themselves.

3. How many cubes are needed to make this interesting model?

• Here are some drawings of the model. Mark the correct top view drawing with ‘T ’ and the correct side view drawing with ‘S’.

Ans. (b) S (d) T

Page No. 144 Solutions

Now Let us Do These

4. Make a paper cube and answer the following questions
5. How many faces does a cube have?

Ans. A cube has 6 faces.

1. How many faces of a cube are squares?

Ans. All the faces of a cube are squares.

1. How many corners does a cube have?

Ans. A cube has 12 corners.

1. How many edges does a cube have?

Ans A cube has 12 edges.

5. Give three examples of a cube in our daily life.

Ans. Dice, chalkbox, Matchbox etc. are three examples of a cube in our daily life.

6. Boxes have different names. So fill in the blanks with a suitable name.

a. An ice-cream ______________

Ans. Cone.

b. A gas ______________

Ans. Cylinder.

c. A _______________ sweet box.

Ans. Cubical

d. A _______________ of Egypt.

Ans. Pyramid

That’s all about Boxes and Sketches Class 5 JKBOSE Solutions. Hope it helped. Do share your views about this post in the comment section below.