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Everyday Mathematics: Lines, Shapes and Solids | Math Olympiad for Class 2 PDF Download

Q1. A dice is shaped like a cube. How many faces does it have?
(a) 4
(b) 6
(c) 8
(d) 12
Ans: (b) 6

 A cube has 6 faces, all of which are squares. 
A dice is a cube, so it has 6 faces.Everyday Mathematics: Lines, Shapes and Solids | Math Olympiad for Class 2

Q2. A girl draws a line across her notebook from left to right. What type of line is this?
(a) Vertical line
(b) Horizontal line
(c) Ray
(d) Parallel line
Ans: (b) Horizontal line

A line drawn from left to right in a straight direction is a horizontal line.Everyday Mathematics: Lines, Shapes and Solids | Math Olympiad for Class 2

Q3. A lunch box is shaped like a cuboid. How many edges does it have?
(a) 6
(b) 8
(c) 12
(d) 14
Ans: (c) 12

 A lunch box is a cuboid, so it has 12 edges.Everyday Mathematics: Lines, Shapes and Solids | Math Olympiad for Class 2

Q4. A ball is shaped like a sphere. How many flat faces does it have?
(a) 0
(b) 1
(c) 2
(d) 3
Ans: (a) 0

A sphere is a round 3D shape with no flat faces. It is curved all around.Everyday Mathematics: Lines, Shapes and Solids | Math Olympiad for Class 2

Q5. A kite string is tied to the kite and held at one point on the ground, stretching straight. What type of line is the string?
(a) Ray
(b) Line segment
(c) Horizontal line
(d) Parallel line
Ans: (b) Line segment

The string has two endpoints (the kite and the ground), making it a line segment.Everyday Mathematics: Lines, Shapes and Solids | Math Olympiad for Class 2

Q6. A brick is a cuboid. If it has 6 faces, how many faces are rectangles?
(a) 2
(b) 4
(c) 6
(d) 8
Ans: (c) 6

A cuboid has 6 faces, and all of them are rectangles.

Q7. A teacher draws two lines on the board that never touch, even if extended. What are these lines called?
(a) Line segments
(b) Rays
(c) Parallel lines
(d) Vertical lines
Ans: (c) Parallel lines

Parallel lines do not meet or intersect at any point, even when extended.Everyday Mathematics: Lines, Shapes and Solids | Math Olympiad for Class 2

Q8. A chocolate bar is shaped like a cuboid. If its length is 10 cm, breadth is 5 cm, and height is 2 cm, how many faces does it have?
(a) 4
(b) 6
(c) 8
(d) 12
Ans: (b) 6

A cuboid always has 6 faces.

Q9. A boy points a flashlight beam that starts at the flashlight and goes on forever. What type of line is the beam?
(a) Line segment
(b) Ray
(c) Horizontal line
(d) Vertical line
Ans: (b) Ray

The beam has one starting point (the flashlight) and extends endlessly in one direction, making it a ray.Everyday Mathematics: Lines, Shapes and Solids | Math Olympiad for Class 2

Q10. A soccer ball is shaped like a sphere. How many edges does it have?
(a) 0
(b) 6
(c) 8
(d) 12
Ans: (a) 0

A sphere has no edges because it is a round 3D shape with no straight lines.Everyday Mathematics: Lines, Shapes and Solids | Math Olympiad for Class 2

The document Everyday Mathematics: Lines, Shapes and Solids | Math Olympiad for Class 2 is a part of the Class 2 Course Math Olympiad for Class 2.
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FAQs on Everyday Mathematics: Lines, Shapes and Solids - Math Olympiad for Class 2

1. What are lines and how are they defined in geometry?
Ans. In geometry, a line is a straight one-dimensional figure that extends infinitely in both directions. It has no endpoints, only length. Lines can be defined by two points on the line, and they are usually represented with arrows on both ends in diagrams.
2. What is the difference between 2D shapes and 3D solids?
Ans. 2D shapes, or two-dimensional shapes, have only length and width, such as squares, rectangles, and circles. They exist on a flat surface. In contrast, 3D solids, or three-dimensional shapes, have length, width, and height, such as cubes, spheres, and cylinders. They occupy space and can be viewed from different angles.
3. Can you explain what polygons are and give examples?
Ans. Polygons are closed 2D shapes that are made up of straight line segments. The line segments are called sides, and the points where they meet are called vertices. Examples of polygons include triangles (3 sides), quadrilaterals (4 sides), pentagons (5 sides), and hexagons (6 sides).
4. How can I identify different types of angles in geometry?
Ans. Angles can be classified based on their measurements. An acute angle measures less than 90 degrees, a right angle measures exactly 90 degrees, an obtuse angle measures more than 90 degrees but less than 180 degrees, and a straight angle measures exactly 180 degrees. Identifying angles can be done using a protractor or by observing their sizes.
5. What are some common properties of 3D shapes?
Ans. Common properties of 3D shapes include the number of faces, edges, and vertices. For example, a cube has 6 faces, 12 edges, and 8 vertices. Additionally, 3D shapes can be classified as either regular, where all faces are the same, or irregular, where faces are of different shapes and sizes.
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