21.
What is the length of the side of a square whose area is 441 cm2 ?
A
21
B
22
C
20
D
12
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40 practice sets · Page 2 of 2
What is the length of the side of a square whose area is 441 cm2 ?
21
22
20
12
What is the length of the diagonal of a rectangle having dimensions 3cm and 4cm?
5
7
1
4
What could be the possible "one's digit" of the square root of 625?
5
4
8
The square root of 6400 is
80
81
32
23
The square root of 169 is
-13
1.3
-1.3
The square root of 12.25 is
2.5
35
25
3.5
The square root of 1.21 is
11
21
2.1
1.1
The square of which of the following would be odd number?
272
1234
7928
431
The square of which of the following would be even number?
7779
1057
131
2826
The square of -9 is
81
18
-18
-81
The square of 23 is :
526
46
429
529
The square of 1.2 is
1.44
14.4
2.4
144
The perfect square number between 30 and 40 is :
39
36
32
35
In a right angle triangle ABC, right angled at B, AB=6cm, BC=8cm ,then AC=..........
12
21
14
10
How many numbers lie between square of 12 and 13?
23
22
24
21
How many non square numbers lie between 112 and 122?
23
22
20
21
How many natural numbers lie between 92 and 102?
19
18
17
15
By which smallest number 90 must be multiplied so as to make it a perfect square ?
2
5
3
10
By which smallest number 48 must be divided so as to make it a perfect square ?
3
6
4
2
25 can be express as the sum of first...............consecutive odd numbers.
4
6
3
5