A pleasing puzzle by Eric LeVasseur:

PI × R2 = AREA

If each letter in this expression (but not the exponent 2) is replaced with a corresponding digit, the resulting equation will be valid. What are the digits?

| SelectClick for Answer | | --- | | 96 × 72 = 4704(Leonard J. Gordon, “Literary Cryptarithmetic by Computer,” Word Ways 23:2 [May 1990], 67-70.)07/17/2024 UPDATE: Reader Dave Lawrence points out that other solutions are possible:76 × 82 = 486477 × 72 = 377386 × 92 = 6966(Thanks, Dave.) |

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