# RBSE Solutions for Class 7 Maths Chapter 3 Square and Square Root Additional Questions

RBSE Solutions for Class 7 Maths Chapter 3 Square and Square Root Additional Questions is part of RBSE Solutions for Class 7 Maths. Here we have given Rajasthan Board RBSE Class 7 Maths Chapter 3 Square and Square Root Additional Questions.

 Board RBSE Textbook SIERT, Rajasthan Class Class 7 Subject Maths Chapter Chapter 3 Chapter Name Square and Square Root Exercise Additional Questions Number of Questions 25 Category RBSE Solutions

## Rajasthan Board RBSE Class 7 Maths Chapter 3 Square and Square Root Additional Questions

Multiple Choice Questions

Question 1
Find the sum without (RBSESolutions.com) operation 1 + 3 + 5
(A) 9
(B) 8
(C) 7
(D) 6

Question 2
Square root of 144 is
(A) 13
(B) 12
(C) 10
(D) 8

Question 3
Square of 11 is
(A) 121
(B) 122
(C) 123
(D) 124

Question 4
In the following which is not (RBSESolutions.com) a perfect square number :
(A) 625
(B) 100
(C) 441
(D) 449

Question 5
if $$\sqrt { 3 }$$ = 1.732 Then what is the value of $$\frac { 1 }{ \sqrt { 3 } }$$.
(A) 0.617
(B) 0.313
(C) 0.577
(D) 0.173

Question 6
Square root (RBSESolutions.com) of 7921 will be
(A) 89
(B) 88
(C) 70
(D) 81

Question 7
Value of $$\sqrt { 1\frac { 9 }{ 16 } }$$ will be –
(A) $$\sqrt { 1\frac { 3 }{ 4 } }$$
(B) $$\sqrt { 1\frac { 1 }{ 4 } }$$
(C) 1125
(D) None of these

Question 8
Which smallest number is required to (RBSESolutions.com) divide 216 so that remainder is a perfect square?
(A) 3
(B) 4
(C) 6
(D) 9

1. (A), 2. (B), 3. (A), 4. (D), 5. (C), 6. (A), 7. (B), 8. (C)

Fill in the blanks:
(i) 1 + 3 + …….. + 7 = 16
(ii) Square of 4 = …………
(iii) Square root of 64 = ………..
(iv) …………. is the inverse process of square.
(v) 412 – 402 = ……
(vi) There are (2n + 1) numbers (RBSESolutions.com) in between n2 and …………….
(i) 5,
(ii) 16,
(iii) 8,
(iv) square root,
(v) 81,
(vi) (n + 1)2

True/False
(i) Square of 2 = 8
(ii) Square root of 64 = 8
(iii) There are 21 numbers (RBSESolutions.com) between 102 and 112.
(iv) Square of 56 = 3236
(v) Square root of 25 = 5
(i) False
(ii) True
(iii) True
(iv) False
(v) True

Question 1
Find the square root of 144 by (RBSESolutions.com) division method.
Solution:
∴ $$\sqrt { 144 }$$ = 12

Question 2
Is 9, 40,41 is a Pythagorean triplets.
(9)2 : (40)2 = 81 + 1600 = 1681 = (41)2
so (9)2 + (40)2 = (41)2
9, 40, 41 is a pythagorean triplets

Question 1
Which smallest number should be (RBSESolutions.com) added to 3986 to make perfect square.
$$\sqrt { 3986 }$$ = 63.14
∴ Required number = (64)2 – 3986 = 4096 – 3986 = 110

Question 2
Find the value of $$\sqrt { 248+\sqrt { 51+\sqrt { 169 } } }$$
Solution:

Question 3
Area of square field is 1089 m2. Then (RBSESolutions.com) find the side of the field.
Solution:
Area of field = 1089 m2
∴ Side of field = $$\sqrt { 1089 }$$ = 33

∴ Length of side of field = 33 m.

Question 4
Find the smallest number required to (RBSESolutions.com) subtract from 1989 to make perfect square and find also the square root of that numbers.
Solution:
On finding of square root of 1989
we see that 53 is more than 1989
∴ subtracting 53 from 1989

1989 – 53 = 1936
∴ $$\sqrt { 1936 }$$ = 44

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