RBSE Class 4 Maths Chapter 11 Solutions Different Shapes

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RBSE Class 4 Maths Chapter 11 Question Answer Different Shapes

Different Shapes Class 4 Questions and Answers

Different Shapes Class 4 Question Answer – InText

Page 84
Let’s Solve

1. What is the difference between a rectangle and a triangle? ______
Solution :
A rectangle has 4 sides and 4 angles while a triangle has 3 sides and 3 angles.

2. What is the diffeence between a rectangle and a circle? ______
Solution :
A rectangle has 4 sides and 4 angles whereas a circle has no sides and no angles.

3. What is the difference between a rectangle and a square ______
Solution :
In a rectangle, the opposite sides are equal and adjacent sides are unequal. Whereas in a square all the sides are equal.

Page 88
Let’s Try

Question 1.
Whiche shapes of tiles would be easiest to lay on the floor of a rectangular roomsquare, circle, or triangle? Why? Explain.
Solution :
It would be easiest to lay square shaped tiles to cover the floor of a rectangular room. Because a square is a regular polygon with all sides equal and all angles are right angles. These easily fit in rectangular room without any gap.

Question 2.
Think and Answer-If we only tile the floor with round tiles, will there be empty spaces in between? Why? Explain.
Solution :
It is difficult to completely cover the floor with round tiles because a circle is a symmetrical but angleless shape, which leaves a gap between two circles.

Let’s Discuss

This is a view of the school. Students are entering the school in the morning.

Look at the picture and answer

1. What all do you see? ______.
Solution : We see classrooms, main gate, water tank, trees, students etc. in the school.

2. In which direction does the main gate of the school building open? ______
Solution : South.

3. From the main gate of the school, which side is the water tank on? ______
(Right/Left)
Solution : Left.

4. How does the tank look when viewed from above the school building? ______
Solution : Circular.

5. In which direction does the door of classroom 2 open? ______
Solution : East.

RBSE Class 4th Maths Chapter 11 Question Answer – Exercise

1. Identify the following shapes and write their number—

Solution :
Triangle = 23
Rectangle = 16
Square = 21
Circle = 4

2. Answer the following questions-

(a) How many surfaces/faces does a matchbox have? ______
Solution : 6

(b) Does the surface of a matchbox look like a rectangle or a square? ______
Solution : Rectangle

(c) Write the names of 4 objects whose surfaces are rectangular. ______
(i) ______ (ii) ______ (iii) ______ (iv) ______.
Solution :
(i) Ark
(ii) Box
(iii) Block of ice
(iv) Barfi

3. Fill in the blanks-

(a) A closed box made of six equal sized surfaces is called a ______ (cube/cuboid)
Answer: cube

(b) The surface of a brick looks like a ______ (rectangle/square)
Answer: rectangle

(c) A cuboid has ______ rectangles. (six/four)
Answer: six

(d) In a cube, opposite surfaces are ______ (same/different)
Answer: same

4. A chalk box without a lid is made up of 5 surfaces. How will its surfaces look when opened? Draw a picture to show.

Solution :

5. Match the given shapes with their names and nets-

Solution :

RBSE Class 4 Maths Chapter 11 Different Shapes Important Questions

Multiple Choice Questions

Question 1.
The shape of an iron box is-
(A) sheet-like
(B) drawing box-like
(C) bangle-like
(D) balloon-like
Answer:
(B) drawing box-like

Question 2.
Which of the following is a shape with rounded surface?
(A)

(B)

(C)

(D)

Answer:
(D)

Question 3.
Which of the following is a flat surface object?
(A)

(B)

(C)

(D)

Answer:
(A)

Question 4.
What will be the shapes of similar surfaces of this box?
(A)

(B)

(C)

(D) None of these
Answer:
(A)

Question 5.
The number of sides of a circle is-
(A) 0
(B) 1
(C) 2
(D) infinite
Answer:
(A) 0

Question 6.
The number of angles in a circle is-
(A) 0
(B) 1
(C) 2
(D) infinite
Answer:
(A) 0

Fill in the blanks

1. A closed shape of three sides is called a ______.
Answer: triangle

2. If four sides are equal, such closed shape is called a ______ .
Answer: square

3. Closed round shape is called ______ .
Answer: circle

4. A closed figure with four sides whose opposite sides are equal is called a ______ .
Answer: rectangle

5. A point is the smallest geometric shape with no length, width or ______ .
Answer: height

Select True/False for the following statements-

1. There can be more than one diameter in a circle. (True/False)
Answer: True

2. The length of the radius is half the length of the diameter. (True/False)
Answer: True

3. A circle can have two radius of diffeent length. (True/False)
Answer: False

4. The diameter of a circle always passes through the centre of the circle. (True/False)
Answer: True

Very Short Answer Type Questions

Question 1.
How many rectangles are there in a trunk like box?
Solution :
6

Question 2.
What is a box-like a figure made of 6 rectangles called?
Solution :
Cuboid.

Question 3.
What is the name of the figure of Chalk packet?
Solution :
Cube.

Question 4.
How are all the sides of a cube?
Solution :
Equal.

Question 5.
What is the shape of the surface of a glass bottom?
Solution :
Circular.

Question 6.
What is the shape of the bottom of a school bag?
Solution :
Flat.

Short Answer Type Questions

Question 1.
What would it look
like if one can of cold drink
was opened and spread?

Solution :
When the can of cold drink is opened and spread, it will appear as shown in the given figure :

Question 2.
Look at the figure of the circle and write the names of the following :

Solution :
Radius = OP, OT, OQ, OS
Diameter = QP, ST
Centre = O

Question 3.
Draw the shapes of the same surfaces of a given Toothpaste packet.

Solution :

Question 4.
What is the radius of the circle called?
Solution :
The distance between the centre and any point on the circle always remain the same. This distance is called the radius of the circle.

Question 5.
What is the diameter of the circle called?
Solution :
The line segment which passes through the centre of the circle and both its ends touch the circle is called diameter of a circle.

Long Answer Type Questions

Question 1.
Count the numbers of Circle, Triangle, Rectangle and Square from the given picture of toy and write it down in the following table :


Solution :