Chapter 4: Long and Short
๐ About this chapter
Measuring length, perimeter, comparing using cm and m.
๐ฏ
Learning Objectives
By end of this chapter you will:
1
Understand Review of Length Units and Measuring Perimeter2
Apply 3 key formulas3
Define: Millimetre, Centimetre, Metre4
Solve NCERT exercises confidently๐ Prerequisites
๐Polynomials, Coordinate Geometry
๐ Chapter Stats
Difficulty๐ฑ Beginner
Est. Time33 min
Topics3
Formulas3
Experiments0
Progress0%
๐ก Did You Know?
โฆThe metre was originally defined as 1/10,000,000 of the distance from equator to North Pole
โฆLight travels about 300,000 km in one second
โฆThe longest road in India is NH44 (4,112 km)
โฆAn ant walks about 10 m per minute
๐ Key Terms(click any term for AI explanation)