Question: Which geometrical theorem is a fundamental relation in Euclidean geometry involving the longest side of a right-angled triangle?
Sentence (from "Pythagoras Peak"): Pythagoras Peak is the highest peak, 1,275 m, in the central Tula Mountains, standing along the north side of Beaver Glacier, 8 nautical miles (15 km) southeast of Mount Storer.
Relevant evidence: No