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Question
If 2=1.4142, then the square of 14.142 should approximately be?
Options:
A .  20
B .  200
C .  2000
D .  2500
Answer: Option B
:
B
2=1.4142 (Given)
Multiply both sides by 10
10×2=14.142
100×2=14.142
Squaringboth sides, we get thesquare of 14.142 to be approximately equal to 200.

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