plane angle
- noun
- /pleɪn ˈæŋɡəl/
- Specialized
:
ángulo plano
- The missing plane angle is called theta and is represented by the symbol 8.
Examples
-
In geometry class, we learned that a plane angle is formed by two straight lines that are on the same flat surface.
-
However, some experimenting with tow-rope length, board size, plane angle, and towing speeds may have to be carried out to obtain the most comfortable and efficient towing technique.
Academic text (1994) -
To measure the plane angle accurately, the lines must intersect at a point in the same plane.
-
The architect used various plane angles to create the unique design of the building.
Synonyms
401
2.5
The space between two lines or surfaces that meet at a point
How Large
- Specialized
- Specialized
- Specialized
1
3.4
- Specialized
- Specialized
16
2.4
- Specialized
1
2.8
Surface Forms
Morphology
The phrase is a straightforward noun–noun composition: 'plane' (a flat two-dimensional surface) + 'angle' (space between two intersecting lines), so the meaning 'an angle in a plane' follows directly from the constituents. This is a regular, cross-linguistically common compositional pattern in technical vocabulary, so a B1 learner who knows both words can infer the MWE's meaning.
Etymology
Plane angle comes from two simple words: plane meaning a 'flat surface' and angle meaning the 'space between two lines'. Imagine two straight lines drawn on the same piece of paper that meet at a point; the space between them is the plane angle, so the term means an angle formed by lines on the same flat surface.