Answer:
since 16 squared root = 4 and 25 squared root= 5 it is known that 19 square root is in between 4 and 5
Explanation:
Perfect squares: 4, 9, 16, 25, 36, 49, 64, ...
To find , identify the perfect squares immediately before and after 19:
See the attachment for the correct placement of on the number line.
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