Give me some practice Questions of Chapter-6 : Squares and square root (Class: 8, NCERT)
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Give me some practice Questions of Chapter-6 : Squares and square root (Class: 8, NCERT)
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Answer:
Question 1.
Find the perfect square numbers between 40 and 50.
Question 2.
Which of the following 242, 492, 772, 1312 or 1892 end with digit 1?
Question 3.
Find the value of each of the following without calculating squares.
Question 4.
Write each of the following numbers as difference of the square of two consecutive natural numbers.
(i) 49
(ii) 75
(iii) 125
Question 5.
Write down the following as sum of odd numbers.
(i) 72
(ii) 92
Question 6.
Express the following as the sum of two consecutive integers.
(i) 152
(ii) 192
Question 7.
Find the product of the following:
(i) 23 × 25
(ii) 41 × 4
Question 8.
Check whether (6, 8, 10) is a Pythagorean triplet.
Question 9.
Using property, find the value of the following:
(i) 192 – 182
(ii) 232 – 222
Question 10.
Simplify: √900 + √0.09 + √0.000009
Question 11.
Find the length of a diagonal of a rectangle with dimensions 20 m by 15 m.