Question

square of 19 is 400.true or false why this statement is false ​

Answer 1

Answer:

False, because the unit digit of the square of 19 can only be 1 because 9 × 9 = 81 and 1 is the unit place. Even if you take 9,29,39,49,59,69 ; the squares of all these number will be ending with 1.

Answer 2

Answer:

$\Huge\bold{\underline{\underline{\green{Solution:-}}}}$

False

$\bold{\underline{\underline{\pink{Explanation:-}}}}$

Square of 19 is 361

${(19)}^{2} = 361$

400 is the square root of 20 not of 19

$\sqrt{400} = 20$

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