NCERT Solutions for Class 8 Maths Chapter 6 (Ex 6.2) Squares and Square Roots

NCERT Solutions for Class 8 Chapter 6 Squares and Square Roots -Free PDF Download

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Maths Revision Notes for Class 8

 Chapter Name Squares and Square Roots Chapter Chapter 6 Exercise Exercise 6.2 Class Class 8 Subject Maths NCERT Solutions Board CBSE TEXTBOOK CBSE NCERT Category NCERT Solutions

NCERT SOLVED

1. Find the squares of the following numbers:

(i) 32      (ii) 35     (iii) 86

(iv) 93     (v) 71     (vi) 46

Ans. (i)

= 900 + 120 + 4 = 1024

(ii)

= 900 + 300 + 25 = 1225

(iii)

= 6400 + 960 + 36 = 7396

(iv)

= 8100 + 540 + 9 = 8649

(v)

= 4900 + 140 + 1 = 5041

(vi)

= 1600 + 480 + 36 = 2116

2. Write a Pythagoras triplet whose one member is:

(i) 6      (ii) 14     (iii) 16       (iv) 18

Ans. (i) There are three numbers  and  in a Pythagorean Triplet.

Here,

Therefore, Second number

Third number

Hence, Pythagorean triplet is (6, 8, 10).

(ii) There are three numbers

and  in a Pythagorean Triplet.

Here,

Therefore, Second number

Third number

Hence, Pythagorean triplet is (14, 48, 50).

(iii) There are three numbers  and  in a Pythagorean Triplet.

Here,

Therefore, Second number

Third number

Hence, Pythagorean triplet is (16, 63, 65).

(iv) There are three numbers  and  in a Pythagorean Triplet.

Here,

Therefore, Second number

Third number

Hence, Pythagorean triplet is (18, 80, 82).