Ex 5.4, 6 - Chapter 5 Class 8 Squares and Square Roots
Last updated at April 16, 2024 by Teachoo
Chapter 5 Class 8 Squares and Square Roots
Concept wise
- Square numbers
- Properties of square numbers
- Sum of consecutive odd numbers
- Numbers between square numbers
- Pattern Solving
- Finding square of large numbers
- Pythagorean triplets
- Square root
- Finding Square root through repeated subtraction
- Finding Square root through prime factorisation
- Checking if perfect square by prime factorisation
- Smallest number multiplied to get perfect square
- Smallest number divided to get perfect square
- Smallest square number divisible by numbers
- Finding number of digits in square root (without calculation)
- Finding square root by division method - Integers
- Least number subtracted to get a perfect square
- Least number added to get a perfect square
- Finding square root by division method - Decimals
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Statement Questions
Transcript
Ex 5.4, 6 Find the length of the side of a square whose area is 441 𝑚^2.Given area of the square plot = 441 𝑚^2 Let side of the square = 𝑥 We know that, Area of square = Side2 ∴ Area of square = 𝑥^2 441 = 𝒙^𝟐 𝑥^2 = 441 𝑥 = √441 ∴ Side = √𝟒𝟒𝟏 Finding square root of 2304 by Long Division ∴ Square root of 441 = 21 Thus, Side of the square plot = 21 m
