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plane angle

noun — 2 senses

plane angle

noun
1

Geometry, Mathematics, Sciences An angle formed by two intersecting straight lines.

2

Geometry, Mathematics, Sciences An angle formed by two intersecting planes, measured by the angle between two intersecting straight lines that are in respective planes and perpendicular to the intersection of the planes.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.