NCERT Solutions for Class 3 maths english Chapter 5: Class 3 Maths Chapter 5 Solutions

Make Amma’s rangoli on the dots given below.

Answer:
Do it yourself.

Name the shapes drawn in Amma’s rangoli:
_________, _________, _________

Answer:
Square, Triangle, Circle

How many shapes are made with
(i) Curved lines: _________
(ii) Straight lines: _________
Answer:
(i) Curved lines: 4
(ii) Straight lines: 10

Use shapes and objects from the classroom to make a rangoli design. Outline the object and colour.
Answer:
Do it yourself.

Try to make the following objects using shape cutouts.

Answer:
Do it yourself.

Collect some cardboard boxes and open them up carefully.

What shapes do you see in the flattened boxes?

Answer:
Do it yourself.

Make an Envelope. Use a square piece of paper and fold it as shown in the picture.

Answer:
Do it yourself.

Trace all the faces of any cuboidal object.
(example — sharpener or eraser)
(a) How many different faces did you get? _________
(b) What shapes are these faces? _________
(c) Did you get a square? _________
(d) Can you get six different rectangles by tracing a cuboid? _________
(e) Can a cuboid have a face like a triangle? _________
(f) The faces of a cuboid are _________ or _________ in shape.
Answer:
Do it yourself.
(a) 6
(b) Rectangles
(c) No (Answer may vary)
(d) Yes
(e) No
(f) The faces of a cuboid are rectangle or square in shape.

Construct the rectangles using the sides given below:

Answer:

Draw 3 bigger rectangles around this small rectangle.

Answer:

(Answers may vary)

Count and write the number of rectangles in the following picture. _________

Answer:
10

Look at the different rectangles given below and answer the following questions.

(a) How many sides are there in a rectangle? _________
(b) How many corners are there in a rectangle? _________
(c) Are there any sides in a rectangle that are equal in length to each other? _________
(d) What do you notice in a rectangle? Describe it in your own words.
Answer:
(a) 4
(b) 4
(c) Yes (opposite sides)
(d) Do it yourself.

Here is a square. Draw 2 bigger squares around this square.

Answer:

(Answers may vary)

Use matchsticks to make a square so that it has squares on all its sides. How many squares did you get?
Answer:
5 squares

Complete the squares using the sides given below.

Answer:

Use the square cutouts from the book to do this activity.

How many different shapes can you make by joining
(a) 2 squares
(b) 3 squares
(c) 4 squares
Show them in a dot grid. Some dot grids are provided in the back of the book.
Answer:

(Answer may vary)

Tick ✓ the shapes that are rectangles.

Which figures are not rectangles? Explain why.
Answer:
Do it yourself.

Can you fold all the corners of a square sheet in such a way that the number of corners remains the same?
Answer:
Yes, the paper can be folded in such away that the number of corners remain unchanged, i.e., 4.

Make a square on a cardboard sheet and cut along the dotted lines marked on the square as shown to get 4 triangles. Make as many different shapes as possible by joining three triangles together. How many shapes can you make?

Now try with four triangles together.
Answer:
Do it yourself.

Mark the square comers in these shapes.

Answer:

Connect the dots to make some squares. How many different squares did you get?
________________________________

Answer:
Two

Look at the picture given below and answer the following.
(а) Count and write the number of corners.
(b) Circle the square corners.

Answer:
(a) 17
(b) Circle the square corners

Use two matchsticks to make two square corners and then four square corners. Draw and show it in the space given below:

Answer:
Do it yourself.

Murugan made three squares with 10 matchsticks.

How many squares can you make with 12 matchsticks?
Answer:
4

Draw and name some triangular objects, that you see around you, in your notebook.
Answer:
Do it yourself.

Count the number of triangles in the given rangoli.

Answer:

How many different triangles can be made using the dots on this circle?

Answer:
8

Move two matchsticks to turn the one triangle into two triangles.

Answer:

Name some objects that are like circles.
__________________________
Answer:
Bangles, Coin, Chapati, Wheel, etc.
(Answer may vary)

Draw colourful circles to complete the circus scene.

Answer:
Do it yourself.

Draw circles by tracing bottle caps, bangles, and rings in your notebook.
Answer:
Do it yourself.

Look at these two shapes and discuss their similarities and differences. Tick ✓ the appropriate word.

Answer:

Choose any pair of shapes. Share the similarities and differences in these shapes with your friends.

Answer:
Do it yourself.

Find the largest rectangle in these shapes.

Answer:

I made one triangle. Then I made another row of triangles.

How many triangles are there in the second figure? _________
If I make one more row, how many triangles will be there in the third figure? _________
Answer:

How many triangles are there in the second figure? 4
If I make one more row, how many triangles will be there in the third figure? 9

Here are some rectangles that are torn. How many square pieces have been torn from each shape?
__________________________

Answer:

Each of these shapes can be the odd one out.

How is each one odd? Discuss.
Answer:
Do it yourself.

To complete the rectangle, tick ✓ the appropriate shapes from the left side to fill the gaps in the shape on the right side.

Answer:

Draw two lines to split the shape into three triangles.

Answer:

Draw one line to split the shape into 3 triangles.

Answer:

Make the following shapes with different sizes and orientations (angular positions) in your notebook.
(a) Triangle
(b) Rectangle
(c) Circle
(d) Other Shape
Answer:
Do it yourself.