Page 1 - Worksheets

SAI International School
Class VIII

Mathematics

Chapter 6-Square and Square roots
Worksheets
Subtopic: Pythagorean triplet & Square number

1) Which of the following number would have digit 7 at unit place?
2
2
2
a)19 b) 14 c)11 d)none of these
2) The Pythagorean triples whose smallest number is 8:

a) 8, 16 17

b) 8, 17, 18
c) 8, 15, 17

d) 8, 15, 16

3) Which of the following is the number non-perfect square numbers’ between the square of the numbers n
and n + 1?
a) n + 1
b) n
c) 2n
d) 2n + 1
e)
4. Which of the following is the difference between the squares of two consecutive natural number is:
a) sum of the two numbers
b) difference of the numbers
c) twice the sum of the two numbers
d) twice the difference between the two numbers.
2
5. Which of the following is the number of non-perfect square number between 17 and 18 2
a) 35
b) 34
c) 70
d) 13

6) Find the square of 27 using identity.

7) Find the square of 115 using the pattern.

8) Write a Pythagorean triplet whose one member is 6.