Math Help!

Four students worked to find an estimate for square root 22. Who is closest to finding the true estimate?
A. Tiffany: "Use square root 16 and square root 25 to estimate."
B. Todd: "I use square root 9 and square root 16."
C. Trenton: "It should be square root 21 and square root 22."
D. Fredrica: "Use square root 25 and square root 36 to get the esimate."
Is the answer A?
Thank you

asked by Laura Ashley
  1. Yes, A.

    posted by Ms. Sue
  2. go back and see how I did the earlier one with linear interpolation. It clearly works best when you pick perfect squares above and below the desired answer.

    posted by Damon

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