Watts Nunatak ({{coord|72|38|S|74|13|E|display=inline,title}}) is an isolated nunatak lying 12 nautical miles (22 km) northwest of Mason Peaks in the Grove Mountains. Mapped from air photos, 1956–60, by ANARE (Australian National Antarctic Research Expeditions). Named by Antarctic Names Committee of Australia (ANCA) for J.P. Watts, supervising technician (radio) at Mawson Station, 1962.

• Theorema egregium
• Theorema egregrium
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• Theorem of de Moivre–Laplace
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• Theorem of intersecting secants
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• Theorem of Menelaus
• Theorem of the base
• Theorem on Friends and Strangers
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