Unit of Angular Measure, Roughly 57.3 Degrees
This page is the CodyCross answer for the clue below from Trip to Spain, Group 844, Puzzle 2 (Atocha Train Station).
Question is: Unit of Angular Measure, Roughly 57.3 Degrees
and the answer is: RADIAN
Word Meaning:
RADIAN — (geometry) In the International System of Units, the derived unit of plane angle: the angle subtended at the centre of a circle by an arc of its circumference equal in length to the radius of the circle.
Definitions from Wiktionary.