The square root of 200 can be simplified as follows:

$\sqrt{200} = \sqrt{100 \times 2} = \sqrt{100} \times \sqrt{2} = 10\sqrt{2}$

Thus, $\sqrt{200} = 10\sqrt{2} \approx 14.14$.

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Here are some related questions for further practice:

1. Simplify $\sqrt{500}$.
2. What is the square root of 72 in simplified form?
3. Calculate $\sqrt{32}$.
4. Find the approximate value of $\sqrt{150}$.
5. Solve $\sqrt{288}$ in its simplest radical form.

Tip: When simplifying square roots, look for perfect square factors to simplify the expression.