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Chapter 2 of 13
NCERT Solutions

What is Long? What is Round? (Shapes)

CBSE · Class 1 · Mathematics

NCERT Solutions for What is Long? What is Round? (Shapes) — CBSE Class 1 Mathematics.

36 questions52 flashcards5 concepts

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13 Questions Solved · 4 Sections

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Think and Do

ADraw round objects in ☐ and long objects in ☐. (Images show various everyday objects such as a ball, pencil, bangle, ruler, coin, straw, etc.)Show solution
Given: We need to sort objects into two groups — Round and Long.

Concept: Round objects are circular/spherical in shape (they have no corners or edges and look like a circle or ball). Long objects are elongated/stretched in shape (they are much longer than they are wide).

Examples of Round objects (draw in the 'Round' box):
- Ball
- Bangle
- Coin
- Orange

Examples of Long objects (draw in the 'Long' box):
- Pencil
- Ruler
- Straw
- Stick

Answer: Draw each object in the correct box based on its shape — round objects (ball, bangle, coin) go in the Round box, and long objects (pencil, ruler, straw) go in the Long box.

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BMatch the objects which are similar in shape. (Images show pairs of everyday objects with similar shapes.)Show solution
Given: We need to match objects that have the same shape.

Concept: Objects that look alike in shape (both round, both long, both box-shaped, both cone-shaped, etc.) are matched together.

Method: Look at each object carefully and find another object in the list that has the same shape.

Examples of matches:
- Ball ↔ Orange (both are round/spherical)
- Pencil ↔ Straw (both are long and cylindrical)
- Box ↔ Book (both are rectangular/cuboid)
- Ice-cream cone ↔ Birthday cap (both are cone-shaped)
- Tin can ↔ Glass (both are cylindrical)

Answer: Draw lines connecting each object to the object with the same shape.

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CTick the shape which is similar to ball. (Images show different shaped objects.)Show solution
Given: We need to find the object that has the same shape as a ball.

Concept: A ball is round and spherical — it is the same shape from every side, has no flat faces, no corners, and it rolls easily.

Answer: Tick the object that is round and spherical in shape (such as an orange or a globe), because it has the same round shape as a ball.

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DTick the shape which is similar to cap. (Images show different shaped objects.)Show solution
Given: We need to find the object that has the same shape as a cap (birthday/party cap).

Concept: A birthday cap or party cap is cone-shaped — it is pointed at the top and circular at the bottom.

Answer: Tick the object that is cone-shaped (such as an ice-cream cone or a funnel), because it has the same cone shape as a cap.

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ETick the shape which is similar to glass. (Images show different shaped objects.)Show solution
Given: We need to find the object that has the same shape as a glass.

Concept: A glass is cylindrical in shape — it is round, hollow, open at the top, and has a flat circular base. It is taller than it is wide.

Answer: Tick the object that is cylindrical in shape (such as a tin can or a drum/dholak), because it has the same cylindrical shape as a glass.

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FTick the shape which is similar to matchbox. (Images show different shaped objects.)Show solution
Given: We need to find the object that has the same shape as a matchbox.

Concept: A matchbox is cuboid/rectangular box-shaped — it has flat faces, straight edges, and corners (vertices). It looks like a brick.

Answer: Tick the object that is cuboid/box-shaped (such as a brick, a book, or a shoe box), because it has the same rectangular box shape as a matchbox.

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Let us Slide — Activity A

AWrite 'R' for rolling objects and 'S' for sliding objects in the given boxes in the picture. (Images show various objects such as a ball, brick, pencil, coin, book, cylinder, etc.)Show solution
Given: We need to identify whether each object rolls or slides.

Concept:
- Objects that are round or cylindrical (curved surfaces) can ROLL — they move by turning over and over. Write 'R'.
- Objects that are flat and have smooth surfaces SLIDE — they move by gliding along a surface without turning. Write 'S'.

Working:
- Ball → Round shape, curved surface → Rolls → Write R
- Brick/Book → Flat faces, no curved surface → Slides → Write S
- Pencil/Cylinder → Cylindrical shape, curved surface → Rolls → Write R
- Coin → Flat and circular → Slides (when flat) → Write S
- Dholak/Drum → Cylindrical → Rolls → Write R
- Matchbox → Flat rectangular faces → Slides → Write S

Answer: Write 'R' next to round/cylindrical objects and 'S' next to flat/box-shaped objects.

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BCollect different objects from your surroundings and see if they roll or slide.
CDo you see things which can do both, roll and slide? If yes, discuss in the class.

Think and Do — Roll, Slide or Both

1Find whether the following objects roll, slide or do both. Put ✓ in the correct column. (The table lists various objects with columns: Rolls, Slides, Rolls as well as slides.)

Project Work

ACollect cardboard boxes like shoe boxes, empty food boxes, fruit boxes, etc. Make a slit on front of the box and draw eyes, mouth and nose, make a puppet with help of your parent or teacher and play with it. Make puppets from your favourite stories and do a puppet show in your classroom.
BMake towers with different objects. Find which shape of objects make taller and stable towers.
CCreate different shapes and objects by using clay.

6 more solved questions in What is Long? What is Round? (Shapes)

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Frequently Asked Questions

What are the important topics in What is Long? What is Round? (Shapes) for CBSE Class 1 Mathematics?
What is Long? What is Round? (Shapes) covers several key topics that are frequently asked in CBSE Class 1 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in What is Long? What is Round? (Shapes) — CBSE Class 1 Mathematics?
Understand the core concepts first, then work through the 36 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
Where can I get free NCERT Solutions for What is Long? What is Round? (Shapes) Class 1 Mathematics?
This page has free step-by-step NCERT Solutions for every exercise question in What is Long? What is Round? (Shapes) (CBSE Class 1 Mathematics) — written the way examiners award marks: given, formula, working, answer.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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