also: せんけい
noun, noun which may take the genitive case particle 'no'
fan shape; fan-shaped
Describes something shaped like a folding fan; used as a noun or with の to modify another noun.
公園の花壇は扇形に作られている。
The flower bed in the park is laid out in a fan shape.
扇形の窓から光が差し込む。
Light streams in through the fan-shaped window.
noun
Only with reading せんけい
Mathematical term for a sector of a circle; the reading せんけい is specific to this sense.
円の扇形の面積を求める公式を覚える。
Memorize the formula for the area of a sector of a circle.