Squares and Square Roots - Solutions 2
CBSE Class –VIII Mathematics
NCERT Solutions
CHAPTER - 6
Squares and Square Roots (Ex. 6.2)
NCERT Solutions
CHAPTER - 6
Squares and Square Roots (Ex. 6.2)
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


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).