A decimal number is multiplied by itself. If the product is 51.84, find the number.
Let us assume decimal number be ‘a’.
We know that a × a = a^2
So,
a × a = 51.84
a^2 = 51.84
a = √51.84
The required number is found out by using long division method.
Then,
a = √51.84
a = 7.2
∴ 7.2 is the decimal number is multiplied by itself and its product is 51.84.
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