The point inside a circle or sphere whose distance to every point on it is the same.
例文
話し言葉 Put the point of your compass on the center, and then draw the circle. コンパスの針を中心に置いて、円をかこう。
書き言葉・答案 Point O is the center of the circle, and point A is on the circle. If OA = 6 cm, find the diameter of the circle. 点 O は円の中心、点 A は円周上の点である。OA = 6 cm のとき、この円の直径を求めよ。
言い間違えやすいところ
英国の綴りは centre。
「中心が (2, −1) の円」は a circle centered at (2, −1)。centered の後の前置詞は at。
三角形の外心 circumcenter・内心 incenter も center を含む語。重心は centroid(エントリ centroid・circumcenter)。
根拠の件数
話し言葉計 132
center of the circle | center of a circle | center of the sphere | its center | the center is | centered at132
書き言葉計 369
center of the circle | center of a circle | center of the sphere | its center | the center is | centered at369
Khan Academy Algebra / Khan Academy AP Calculus / Khan Academy AP Statistics / Khan Academy Middle School (6th-8th Grade, Pre-Algebra) / MIT OCW 18.01 Single Variable Calculus / MIT OCW 18.02 Multivariable Calculus / MIT OCW 18.03 Differential Equations / MIT OCW 6.042 Mathematics for Computer Science / 3Blue1Brown / blackpenredpen / The Organic Chemistry Tutor / PatrickJMT / Professor Leonard
取得元(書き言葉)
MIT OCW lecture notes / OpenStax Algebra and Trigonometry 2e / OpenStax Calculus Vol 1-3 / OpenStax Intermediate Algebra 2e / OpenStax Introductory Statistics 2e / OpenStax Prealgebra 2e