All questions of Geometrical Shapes for Class 5 Exam

Understanding the Cube
A cube is a three-dimensional geometric shape that has distinct characteristics. To understand why the correct answer is option 'C' (square), let’s break down the properties of a cube.
Definition of a Cube
- A cube is defined as a solid object with six equal square faces.
- Each face of the cube is a flat surface that forms part of its boundary.
Characteristics of Cube Faces
- Shape of Faces: All six faces of a cube are squares. This means that:
- Each face has four equal sides.
- Each angle in the square measures 90 degrees.
- Equal Dimensions: The sides of the squares are equal in length, making the cube symmetric.
Visual Representation
- Imagine a dice, which is a common example of a cube. Each side you see is a square face.
- When you look at a cube from any angle, you would see that the visible faces are squares.
Comparison with Other Options
- Circle: A circle has no corners or edges, which does not apply to a cube.
- Triangle: A triangle has three sides and three angles, which is different from the four-sided square.
- Pentagon: A pentagon has five sides and corners, which is also not relevant to the structure of a cube.
Conclusion
In summary, the faces of a cube are all squares, making option 'C' the correct answer. Understanding the properties of different geometric shapes helps in identifying their characteristics accurately.

Understanding Edges in Shapes
When we talk about geometric shapes, it's essential to understand what edges are. An edge is a line segment where two faces of a solid meet. Let’s explore the options provided:
Option A: Sphere
- A sphere is perfectly round and has no flat surfaces.
- It is a three-dimensional shape, resembling a ball.
- Since it has no corners or flat surfaces, it also lacks edges.
Option B: Cube
- A cube is a three-dimensional shape with six square faces.
- Each face meets another face at a line segment, which forms an edge.
- A cube has a total of 12 edges.
Option C: Cylinder
- A cylinder consists of two circular bases and a curved surface connecting them.
- The circular bases have edges where the base meets the curved surface.
- Therefore, a cylinder has two edges.
Option D: Cone
- A cone has a circular base and a pointed apex.
- The base of the cone forms an edge where it connects to the curved surface.
- Thus, a cone has one edge.
Conclusion
From the analysis, it is clear that:
- The sphere stands out as the only shape that has no edges, as it is a continuous, smooth surface without any vertices or corners.
- The cube, cylinder, and cone all have distinct edges formed by their respective faces and surfaces.
In summary, the correct answer is option 'A' - the sphere.