End-of-Chapter Exercises – Complete Solutions 1. Intro This chapter develops the idea that area and perimeter can be understood through decomposition, rearrangement, similarity, scaling and…
End-of-Chapter Exercises – Complete Solutions 1. Intro This chapter develops the idea that area and perimeter can be understood through decomposition, rearrangement, similarity, scaling and…
Quick Facts Story Imagine the minute hand of a clock moving around the clock face. It sweeps out a portion of a circle. If the…
Chapter 6: Measuring Space — Perimeter and Area 1. Quick Revision Area of a Triangle The area of a triangle is:Area=12×base×height\boxed{\text{Area}=\frac12\times\text{base}\times\text{height}} When the three sides…
Measuring Space: Perimeter and Area Introduction Perimeter means the total distance around the boundary of a shape. For a circle, the perimeter is called its…
Quick Facts Chapter Name Building Blocks in Economics: The Problem of Choice Subject Social Science (Economics) Grade NCERT Grade 9 Main Theme Economics explains how…
Quick Revision 1. Meaning of Election An election is a democratic process through which citizens choose their representatives by voting. Elections allow people to participate…
Introduction Learning democracy is not just about memorising definitions—it is about understanding how democratic values shape our daily lives. This final part of Chapter 6…
Introduction Democracy becomes meaningful only when citizens actively participate in governance. In India, democracy is not limited to elections every five years. It extends to…
Question 6 NCERT Question How does the separation of powers strengthen democracy? Answer The Separation of Powers is one of the most important principles of…
Introduction Democracy is much more than a system of government—it is a way of ensuring that every citizen has a voice in shaping the future…
Short Introduction The chapter “State and Society up to 1000 CE” explains how political and social organisation developed in the Indian subcontinent from early kin-based…
Short Introduction The chapter “Early Humans and Beginning of Civilisation” traces the long journey of humanity from early hunter-gatherers to farmers, village dwellers, craftspeople, traders…
Atmosphere and Climate – Complete Questions and Activities Short Introduction The atmosphere is the blanket of gases surrounding the Earth. It makes life possible by…
Shaping of the Earth’s Surface – Complete Questions and Activities Short Introduction The Earth’s surface is constantly changing. Some changes are caused by forces originating…
Short Introduction Social Science helps us understand human society and the complex relationships connecting people, places, institutions, resources, cultures, economies, and environments. It goes beyond…