Mathematics
Junior High

答えが9なんですけどなんでですか?

  私の考え方
√72.3に近いのは  64(8の二乗)と81(9の二乗)
で64の方が72.3に近いから答えは8いう考え方で解いたら間違えました

16 V72.3 に最も近い整数を求めなさい。

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