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Question 4 - Figure it out - Page 10, 11 - Chapter 1 Class 8 - A Square and a Cube (Ganita Prakash)
Last updated at July 30, 2025 by Teachoo
Class 8 (Ganita Prakash & Old NCERT)
Chapter 1 Class 8 - A Square and a Cube (Ganita Prakash)
- Introduction
- Square Numbers
- Perfect Squares - and its Properties
- Perfect Squares - and its Patterns
- Square Root
- Smallest number multiply or divide to get perfect square
- Estimating Square Root
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Figure it out - Page 10, 11
- Cubic Numbers
- Perfect Cubes - and its Properties
- Perfect Cubes - and its Patterns
- Cube Root
- Smallest number multiply or divide to get perfect cube
- A pinch of History
- Figure it out - Page 16, 17
Transcript
Question 4 Find the length of the side of a square whose area is 441 m2. Given area of the square plot = 441 ๐^2 Let side of the square = ๐ฅ We know that, Area of square = Side2 โด Area of square = ๐ฅ^2 441 = ๐ฅ^2 ๐ฅ^2 = 441 ๐ฅ = โ441 โด Side = โ๐๐๐ Finding square root of 441 Thus, 441 = 3 ร 3 ร 7 ร 7 = 32 ร 72 = (3 ร 7)2 = 212 โด Square root of 441 = 21 Thus, Length of side of square is 21 cm
