8th Standard CBSE Syllabus & Materials
8th Standard CBSE
CBSE 8th Social Science Theme D - Factors of Production - New Model Questions Papers Study Material - QB365 Set A
NEW8th Standard CBSE
CBSE 8th Social Science Theme C - Universal Franchise and India's Electoral System - New Model Questions Papers Study Material - QB365 Set A
NEW8th Standard CBSE
CBSE 8th Social Science Theme B - The Rise of the Marathas - New Model Questions Papers Study Material - QB365 Set A
NEW8th Standard CBSE
CBSE 8th Social Science Theme B - Reshaping India's Political Map - New Model Questions Papers Study Material - QB365 Set A
NEW8th Standard CBSE
CBSE 8th Social Science Theme A - Natural Resources and Their Use - New Model Questions Papers Study Material - QB365 Set A
NEW8th Standard CBSE
CBSE 8th Science Keeping Time with Skies - New Model Questions Papers Study Material - QB365 Set A
Published on: 24/08/2019
Square and Square Roots
Download CBSE Class 8th Standard CBSE Mathematics question papers, sample papers, important questions, and previous year solved papers in PDF format. Get free study materials, NCERT solutions, and exam preparation resources for Class 8th Standard CBSE Mathematics
Questions + Answers key
Take MCQ Mathematics Test
1.
Find the length of the side of a square whose area is 100 cm2.
5 cm
10 cm
100 cm
4 cm
2.
How many natural numbers lie between 82 and 92?
16
17
18
19
3.
The square of which of the following in the square of the numbers will be odd?
42
54
66
81
4.
The square of which of the following numbers will be odd?
10, 100, 1000, 99
10
100
1000
99
5.
Which of 212, 332, 472 and 362 would have 6 at unit place?
212
332
472
362
6.
Which of 1052, 2162, 3332 and 1112 would end with digit 1?
1052
2162
3332
1112
7.
Which of the following is a perfect square number?
2222
32543
888
10000
8.
Which of the following is a perfect square number?
1067
7828
4333
625.
9.
The perfect square number out of 2, 3, 4 and 5 is
2
3
4
5
10.
The hypotenuse of a right angled triangle with its base and perpendicular of lengths 3x, 4x respectively is
25x
7 x
5x
16x
11.
Which of the following cannot be a perfect square?
441
198
676
All of these
12.
If one member of a Pythagorean triplet is 2m, then other two members are
m, m2 + 1
m2 + 1, m2 - 1
m2, m2 - 1
m2 , m+1
13.
A square board has an area of 121 square units. How long is each side of the board?
11 units
12 units
13 units
14 units
14.
A number ending in 9 will have the unit's place of its square as
1
3
9
6
15.
169 is the square of
11
12
13
14
16.
Which of the following is a perfect square?
122
289
258
260
17.
112=_____+_____
18.
1 + 3 + 5 + 7 + 9 + ______ = 62
19.
1 + 3 + 5 + 7 + 9 + ______ = 52
20.
The square root of 24025 will have _____________ digits.
21.
The unit's digit in the square of 1456 is ________________
22.
There are _____________ perfect square between 1 and 100.
23.
The product of two perfect squares is a perfect square.
24.
The sum of two perfect squares is a perfect square.
25.
The square of 87 will have 3 at the unit's place.
26.
If n is an odd number of digits of a square-number then the number of digits in its square-root are_______
27.
If n is an even number of digits of a square number then the number of digits in its square root are ________
28.
There are '2n' non-perfect square numbers between the square of the numbers______
29.
2.89
30.
4.41
1.
\(\sqrt{100}=10cm\)
2.
2 x 8 = 16
3.
∵ 81 is odd
∴ Its square will be odd
4.
∵ 99 is odd
∴ Its square will be odd.
5.
If a number has 4 or 6 in the unit's place, then its square ends in 6.
6.
If a number has 1 or 9 in the unit's place, then its square ends in 1.
7.
Perfect square numbers end with 0, 1, 4, 5, 6 or 9 at unit's place.
8.
Perfect square numbers end with 0, 1, 4, 5, 6 or 9 at unit's place
9.
4 = 2 x 2 = 22
10.
(c)
5x
11.
(b)
198
12.
(b)
m2 + 1, m2 - 1
13.
(a)
11 units
14.
(a)
1
15.
(c)
13
16.
(b)
289
17.
( )
60 + 61
18.
( )
11+13
19.
( )
11
20.
( )
3
21.
( )
Six
22.
( )
8
23.
(a)
24.
(b)
25.
(b)
26.
( )
\(\frac{n+1}{2}\)
27.
( )
\(\frac{n}{2}\)
28.
( )
n and n +1
29.
( )
1.7
30.
( )
2.1
8th Standard CBSE Syllabus & Materials
8th Standard CBSE
CBSE 8th Science Particulate Nature of Matter - New Model Questions Papers Study Material - QB365 Set A
NEW8th Standard CBSE
CBSE 8th Science Pressure, Winds, Stroms and Cyclones - New Model Questions Papers Study Material - QB365 Set A
NEW8th Standard CBSE
CBSE 8th Mathematics Quadrilaterals - New Model Questions Papers Study Material - QB365 Set A
NEW8th Standard CBSE
CBSE 8th Mathematics A story of Numbers - New Model Questions Papers Study Material - QB365 Set A
CBSE 8th Standard CBSE Subjects
CBSE Standards
