RBSE Class 5 Maths Chapter 16 Solutions Rama’s Kitchen

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RBSE Class 5 Maths Chapter 16 Question Answer Rama’s Kitchen

Rama’s Kitchen Class 5 Questions and Answers

Rama’s Kitchen Class 5 Question Answer – InText

Page-148

Question 1.
Identify the pictures given below and write the names of two-dimensional shapes in Box 1 and the names of threedimensional shapes in Box 2.

Solution :
Box-1 : Square, rectangle, triangle, circle
Box-2 : Sphere, Table, Pen, Carrot

Page-150

Question 1.
Which two-dimensional shape will be formed by making a flat surface net of the three-dimensional figures given below. Match :

Solution :

Page-152

Question 1.
How do the following three-
dimensional shapes which are given below look when seen from top, left or right? Put a tick mark $(\checkmark)$ on the picture :

Solution :

RBSE Class 5th Maths Chapter 16 Question Answer – Practice Work

Question 1.
Identify the given objects and write the name of their threedimensional shape :

Solution :

Question 2.
Explain the difference between two-dimensional and three-dimensional shapes.
Solution :
A two-dimensional shape has length and breadth, whereas a three-dimensional shape also has height/depth along with length and breadth.

Question 3.
Draw rotational diagrams of a wooden block, button, coin and pen and also write their rotational symmetry order.
Solution :
(i) Figure of a wooden block

The order of rotational symmetry of a wooden block is 4.

(ii) Figure of a button

The order of rotational symmetry of a button is 4.

(iii) Figure of a coin

The order of rotational symmetry of a coin is 1.

(iv) Figure of a pen

The order of rotational symmetry of a pen is 1.

Question 4.
State the order of rotational symmetry of the given figures.

Solution :
(i) 2 (ii) Infinite (iii) 5 (iv) 4 (v) 3

Question 5.
Write the number of faces, edges and vertices of the following threedimensional figures :

Solution :

Question 6.
Write the names of objects whose edges are curved?
Solution :

• Cylinder : A tin box where the edges of the top and bottom circular parts are curved.
• Cone : Like an ice cream cone whose base is curved.
• Sphere : Like a ball, its entire surface is curved.

Question 7.
Write the names of objects which have edges but no vertex?
Solution :
Coin, Cylindrical tin box, Circular pizza, roti etc.

Question 8.
Write the number of edges and vertex of the following pictures :

Solution :
(i) One curved edge and two straight edges and one corner.
(ii) An ellipse has no edges or corners.
(iii) 6 edges and 6 corners.
(iv) 4 edges and 4 corners.

RBSE Class 5 Maths Chapter 16 Rama’s Kitchen Important Questions

Multiple Choice Questions :

Question 1.
What is the name of the four-sided figure?
(A) Rectangle
(B) Triangle
(C) Square
(D) Pentagon
Answer:
(C) Square

Question 2.
Which of the following figures is three-dimensional?
(A) Circle
(B) Square
(C) Cube
(D) Rectangle
Answer:
(C) Cube

Question 3.
How many sides does a hexagon have?
(A) 4
(B) 5
(C) 6
(D) 7
Answer:
(C) 6

Question 4.
Which shape has rotational symmetry of order 4 ?
(A) Triangle
(B) Square
(C) Pentagon
(D) Hexagon
Answer:
(B) Square

Question 5.
What is the name of the threedimensional shape with six sqaure faces?
(A) Cube
(B) Cuboid
(C) Cylinder
(D) Sphere
Answer:
(A) Cube

Question 6.
How many dimensions does a line have?
(A) 1
(B) 2
(C) 3
(D) 4
Answer:
(A) 1

Question 7.
Which at the following shapes has no sides?
(A) Square
(B) Triangle
(C) Circle
(D) Rectangle
Answer:
(C) Circle

Question 8.
Which shape has rotational symmetry of order 3 ?
(A) Square
(B) Triangle
(C) Pentagon
(D) Hexagon
Answer:
(B) Triangle

Fill in the blanks :

(i) A cube is a three-dimensional shape with ________ square faces.
Answer: six

(ii) A shape has rotational symmetry if it looks the some after less than 360 degrees of ________ .
Answer: rotation

(iii) A sphere is a three-dimensional shape that is completely ________ is shape.
Answer: spherical

(iv) A square has rotational symmetry of order ________ .
Answer: 4

Write whether true or false :

(i) A rectangle is a type of triangle.
Answer : False

(ii) A cube has 12 edges.
Answer : True

(iii) A circle has rotational symmetry of order 1.
Answer : False

(iv) A square pyramid is a two-dimensional figure.
Answer : False

(v) All rectangles are squares.
Answer : False

Very Short Answer Type Questions :

Question 1.
Name a three-dimensional shape that has 6 faces.
Solution :
Cube

Question 2.
How many edges does a cube have?
Solution :
12

Question 3.
Give an example of a two-dimensional shape that has rotational symmetry.
Solution :
Square, Circle etc.

Question 4.
What is the order of rotational symmetry of a circle?
Solution :
Infinite.

Question 5.
Give an example of a twodimensional shape that has 4 sides.
Solution :
Square, Rectangle etc.

Question 6.
Name a three-dimensioanl shape that has 5 faces.
Solution :
Square pyramid

Question 7.
Give an example of a threedimensional shape whose base is circular.
Solution :
Cylinder, Cone etc.

Question 8.
How many faces does a rectangular prism have?
Solution :
6

Question 9.
Give an example of a threedimensional shape whose apex is pointed.
Solution :
Pyramid, Cone etc.

Question 10.
What is the name of a threedimensional shape with 6 square faces?
Solution :
Cube

Question 11.
How many edges does a rectangular Prism have?
Solution :
12

Question 12.
Give an example of a two-dimensional shape with rotational symmetry of order 4.
Solution :
Sqaure

Short Answer Type Questions :

Question 1.
What is rotational symmetry?
Give an example.
Solution :
Rotational symmetry occurs when a figure looks the some even after rotation. For example, A square looks the some after rotating 90 degrees. This means that if you rotate a square by 90 degrees. It will appear exactly as it did before rotation.

Question 2.
Name some objects in your daily life that are spherical in shape.
Solution :
Some objects that are spherical in shape include balls, globes, marbles and planets. These objects are completely round and have no edges or corners.

Question 3.
Describe a rectangular prism.
Solution :
A rectangular prism is a threedimensional shape that has 6 rectangular faces, 12 edges and 8 vertices. It has length, width and height, and all its faces are rectangular.

Question 4.
Give an example of a threedimensional shape with a circular base.
Solution :
Examples of three-dimensional shapes with a circular base are cylinders and cones. These shapes have a circular base and a curved surface that extends upwards.

Question 5.
Describe a pyramid.
Solution :
A pyramid is a three-dimensional shape that has a base and triangular faces that meet at an apex. The base can be a square, rectangle or triangle, and the triangular faces are isosceles triangles.

Question 6.
What is the order of rotational symmetry of a square?
Solution :
The order of rotational symmetry of a square is 4. This means that if you rotate a square by 90 degrees. It will look exactly the same as it did before rotating and this will happen 4 times in a full 360 degree rotation.

Question 7.
Give an example of a two dimensional shape that has rotational symmetry of order 3.
Solution :
An equilateral triangle has rotational symmetry of order 3. This means that if you rotate an equilateral triangle by 120 degrees, it will look exactly the same as it did before the rotation, and this will happen 3 times in a full 360 degree rotation.

Long Answer Type and Essay Type Question :

Question 1.
Identify and describe the number of edges, vertices and faces of the following objects in your daily life :
(i) A dice (Cube)
Answer:
A dice (Cube) has 12 edges, 8 vertices and 6 faces.

(ii) A book (rectangular prism)
Answer:
A book (cuboid) has 12 edges, 8 vertices and 6 faces.

(iii) A football (sphere)
Answer:
A football (sphere) has no edges, no vertices and 1 curved surface.

(iv) A conical ice cream cone (Cone)
Answer:
A conical ice cream cone (Cone) has 1 edge (base), 1 vertex (apex) and 2 faces (1 curved surface and 1 circular base).

(v) A cylindrical water bottle (Cylinder)
Answer:
A cylindrical water bottle (Cylinder) has 2 edges (circular bases at top and bottom), no vertices and 3 faces (2 circular bases and 1 curved surface).