Mathematics Class 7th
61. In _________ to find the square root of a natural number, factorize the number and then write the factors in square form.
A. Factorization method
B. Division method
C. None of these
62. Find the square root by factorization method: 81
A. 9
B. 6
C. 12
63. 9/3 is an_________.
A. Improper fraction
B. Proper fraction
C. None of these
64. 1 4/5 is _________.
A. Mixed form
B. Normal form
C. None of these
65. Find the square root by factorization method: 1024
A. 32
B. 34
C. 35
66. Find the square root by factorization method:
A.
3 1/4
B. 10 2/7
C. 10 8/9
67. Find the square root by factorization method: 22500/324
A. 8 1/3
B. 10 1 /3
C. 12 9/16
68. Find the square root by factorization method: 19.36
A. 4.4
B. 3.4
C. 2.4
69. What is the length of the side of a squared garden shape whose area is 196 .
A. 14m
B. 12m
C. 10m
70. The area of a squared classroom is 31.36 . Find the length of its side.
A. 5.6m
B. 4.6m
C. 3.6m
71. The area of a square shaped farm is 6400 . Find the perimeter of the farm. A
A. 320m
B. 340m
C. 360m
72. The area of a squared garden is 121 . What is the length of its sides?
A. 11yd
B. 13yd
C. 17yd
73. The square of an even number is ________ number.
A. an even
B. an odd
C. none of these
74. The square of a proper fraction is _______ than itself.
A. less
B. greater
C. none of these
75. The square of an number is _______ number
A. an odd
B. an even
C. none of these
76. The square root of 121 is _______.
A. 11
B. 12
C. 13
77. 625 is the perfect square of ______.
A. 25
B. 26
C. 27
78. 169 is the perfect square of
A. 9
B. 13
C. 19
D. 23
79. 28 is the square root of
A. 144
B. 742
C. 784
D. 169
80. The square of any even number is
A. even
B. odd
C. prime
D. none of these