To evaluate the statements using rational approximations, let's first calculate the square roots of the numbers involved.
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Calculating √49: \[ \sqrt{49} = 7 \]
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Calculating √48: Since 48 is between 36 (6²) and 49 (7²), we can approximate: \[ \sqrt{48} \approx 6.93 \quad (\text{since } 48 \text{ is close to } 49) \]
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Calculating √36: \[ \sqrt{36} = 6 \]
Now we evaluate each statement:
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\( \sqrt{49} > 7 \):
- False, because \( \sqrt{49} = 7 \).
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\( \sqrt{48} < \sqrt{36} \):
- False, because \( \sqrt{48} \approx 6.93 \) and \( \sqrt{36} = 6 \).
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\( \sqrt{48} > \sqrt{36} \):
- True, because \( \sqrt{48} \approx 6.93 \) is greater than \( 6 \).
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\( \sqrt{49} < 7 \):
- False, because \( \sqrt{49} = 7 \).
Thus, the true statement is: \[ \sqrt{48} > \sqrt{36} \]