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ACT 数学と評価 - Geometry
ここでは、ACT のエースに役立つ「接線」、「頂点」、「楕円」など、幾何学に関連するいくつかの英単語を学びます。
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フラッシュカード
綴り
クイズ
the measure of how steep a line is, found by dividing the change in height by the change in horizontal distance
傾き, スロープ
a unit for measuring angles, defined by the angle made when the radius of a circle is laid along its edge
ラジアン, 角度の測定単位
the length of a straight line drawn from the center of a circle to any point on its outer boundary
半径
a straight line from one side of a round object, particularly a circle, passing through the center and joining the other side
直径
(geometry) the length of the external boundary of a curved shape, especially a circle
円周
the amount of space that a substance or object takes or the amount of space inside an object
体積, ボリューム
the space between two lines or surfaces that are joined, measured in degrees or radians
角度
one of a pair of opposite angles made by two intersecting lines, which are always equal
垂直角, 対角
an angle formed between two sides of a polygon that lies inside the shape
内角, 内部角
an angle that measures between 0 and 90 degrees, which is less than a right angle (90 degrees)
鋭角, acute angle
pairs of angles that share a common side and vertex in a polygon or between intersecting lines
連続角, 隣接角
(geometry) any flat shape with four straight sides, the opposite sides of which are equal and parallel to each other
平行四辺形
characterized by or resembling a tetrahedron, which has four triangular faces
四面体の
(geometry) a flat shape with four equal sides in which opposite angles are equal
ひし形, ロムバス
a small circle whose center moves around the circumference of a larger circle
エピサイクル
a geometric curve formed by the intersection of a plane with two cones, resulting in two symmetrical branches
双曲線
(geometry) a symmetrical open curve that is similar to the path of an object thrown into the air passes till it falls back to earth
放物線
a flat geometric shape consisting of three straight sides and one right angle
直角三角形, 直角を持つ三角形
a triangle in which all three interior angles are less than 90 degrees
鋭角三角形, 鋭角の三角形
a type of triangle that has all three sides of different lengths
不等辺三角形, 不規則な三角形
the longest side of a right-angled triangle, opposite the right angle, and defined as the side opposite the right angle in a right-angled triangle
斜辺
a three-dimensional geometric shape with two parallel circular bases connected by a curved surface at a right angle to the bases
直円柱
a three-dimensional geometric shape that has a rectangular base and four triangular faces that meet at a single point called the apex
長方形のピラミッド, 長方形基底のピラミッド
(geometry) a lack of symmetry or equivalence in shape or size between the two sides or parts of something
非対称
a point where two or more lines, edges, or rays meet to form an angle, or the point at which the sides of a polygon intersect
頂点, 角点
the side of a geometric shape, usually the one considered as the bottom, from which the height is measured
底辺, 基底
a pair of geometric figures, such as lines or planes, that do not meet or intersect, no matter how far they are extended
平行線, パラレル
a series of numbers in which each term after the first is found by multiplying the previous term by a fixed, non-zero number
等比数列
the total area that the surface of a three-dimensional object occupies
表面積, サーフェスエリア
(of a line) intersecting two or more other lines at different points
横断的, 交差する
one-fourth of a circle, formed by two perpendicular radii and the connecting arc
区分
a straight line that a curve approaches indefinitely but never intersects, characterizing the limiting behavior of the curve
漸近線
a straight line that touches a curve or surface at exactly one point, known as the point of tangency
接線
(geometry) to move a shape or figure from one position to another without rotating, resizing, or otherwise altering its shape
平行移動する, 移動させる
