7. By which smallest number 90 must be multiplied so as to make it perfect square?
(a) 10
(b) 2
(c) 5
(d) 3
8. By which smallest number 48 must be divided so as to make it a perfect ware?
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Answer:it is 10 as by multiplying by 10 it becomes.900 which is a square of 30 please mark the brainliest
Step-by-step explanation:
Answered by
5
first we take the HCF of 90
90 = 10× 3× 3
so if we multiple 10 from the 90 so it becomes a perfect square.
8. first we take the HCF of 48
48 = 2× 3 ×2×2×2
so if we divide 3 from 48 than it become a perfect square.
90 = 10× 3× 3
so if we multiple 10 from the 90 so it becomes a perfect square.
8. first we take the HCF of 48
48 = 2× 3 ×2×2×2
so if we divide 3 from 48 than it become a perfect square.
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