Using a number line, what is the approximate number value of the square root of 103? Provide your answer in decimal form, rounded to the nearest hundredth. (1 point)

1 answer

To approximate the square root of 103, we can find perfect squares close to 103.

We know that:

  • \(10^2 = 100\)
  • \(11^2 = 121\)

This tells us that \(10 < \sqrt{103} < 11\).

Next, we will refine our approximation by checking some decimal values between 10 and 11.

Calculating:

  • \(10.1^2 = 102.01\)
  • \(10.2^2 = 104.04\)

This indicates that:

  • \(10.1^2 < 103 < 10.2^2\), so \(10.1 < \sqrt{103} < 10.2\).

We can further refine this by checking halfway, say \(10.15\):

  • \(10.15^2 = 103.0225\)

Now, we see that:

  • \(10.1 < \sqrt{103} < 10.15\).

Let's check \(10.14\):

  • \(10.14^2 = 102.6596\)

Now, we have:

  • \(10.14 < \sqrt{103} < 10.15\).

Since \(10.14\) is close, we can conclude: The approximate value of \(\sqrt{103} \approx 10.14\).

Rounding to the nearest hundredth, we find: \[ \sqrt{103} \approx 10.14 \]

Therefore, the answer is \( \boxed{10.14} \).

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