Question

PRACTICE EXERCISE 6.1
1. Using prime factorisation, find which of the following are perfect squares?
72
(1) 130 (it) 256 (iv) 289 (V) 900 (vi) 1684
using distributive property, find the square of the following 2-digit numbers.
1 17 (1) 25 (iv) 49 (1) 92
3. Using duplex method, find the square of the following 2-digit numbers.
18 (23 (1) 51 (iv) 67 (v) 89
Find the smallest square number that is divisible by each of the numbers.
(a) 4.9 and 10
(b) 8.15 and 20​

Answer 1

Answer:

900

49

18

5

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Answer 2

Answer:

answer is wrong my brother