内角
Meanings
1
interior angle; internal angle
Mathematical term for the angle inside a polygon or between two lines.
See also: 外角
The sum of the interior angles of a triangle is 180 degrees.
2
inside corner
Baseball term for a pitch thrown on the inside part of the strike zone, close to the batter.
See also: 外角
The pitcher aggressively attacked the inside corner.
Usage patterns
- 〈物〉の内角の和the sum of the interior angles of a shape
The sum of the interior angles of a triangle is 180 degrees.
- 内角を突くto pitch aggressively to the inside corner
The pitcher retired the batter by pitching to the inside corner.
- 内角に投げるto throw a pitch to the inside corner
The pitcher threw inside and jammed the batter.