Last seen in:
- Wall Street Journal - Sep 16 2021 - 90 Degrees of Separation
- L.A. Times Daily - Jan 4 2021
- The Washington Post - Jan 4 2021
- L.A. Times Daily - Oct 11 2018
- The Washington Post - Oct 11 2018
- The Washington Post - May 14 2018
- L.A. Times Daily - May 14 2018
- L.A. Times Daily - Nov 6 2017
- The Washington Post - Nov 6 2017
- Family Time - Jul 31 2017
Related Clues:
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- ... without science, regularly
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- Opposite-to-hypotenuse ratio
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- It's 1 for a right angle
- Angle ratio