# math

4 digit number 12*6 is a perfect square.the value of the digit represented by * is ?

1. 👍 0
2. 👎 0
3. 👁 36
1. Just put in some number

e.g. 1256
√1256 = appr 35.44

but we know that it must end in a 6, so it has to be 36
36^2 = 1296

so the missing number is a 9

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2. 👎 0
posted by Reiny

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