# アカデミック IELTS (バンド 8 以上) - ジオメトリ

ここでは、アカデミック IELTS 試験に必要な幾何学に関連する英単語を学びます。

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parallelogram

(geometry) any flat shape with four straight sides, the opposite sides of which are equal and parallel to each other

[名詞]
tetrahedron

(geometry) a polyhedron with four flat sides, a triangular pyramid

[名詞]
octahedron

a geometric figure with eight triangular faces, twelve edges, and six vertices

[名詞]
dodecahedron

a three-dimensional figure with twelve regular pentagonal faces, thirty edges, and twenty vertices

[名詞]
icosahedron

a three-dimensional figure with twenty equilateral triangle faces, thirty edges, and twelve vertices

[名詞]
curvature

the measure of how much a curve or surface deviates from being straight or flat at a specific point

[名詞]
parabola

(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

[名詞]
hyperbola

a geometric curve formed by the intersection of a plane with two cones, resulting in two symmetrical branches

[名詞]
sigmoid

an S-shaped curve, often used in mathematics and biology, and represents a function that produces a characteristic "S" shaped curve

シグモイド

[名詞]
torus

a solid shape resembling a donut or ring, made by spinning a circle around a line that does not cut through the circle

トーラス

[名詞]
frustum

the section of a solid shape that remains after a parallel cut, featuring a flat top and a bottom that is larger or smaller than the top

[名詞]
crescent

a curved shape with narrow points at the ends that appears wider in the middle, like the shape of the moon in its first and last quarters

[名詞]
helicoid

a surface in three-dimensional space formed by moving a straight line along a helix

ヘリコイド

[名詞]
annulus

a geometric shape formed by the region between two concentric circles in a plane

[名詞]
rhombus

(geometry) a flat shape with four equal sides in which opposite angles are equal

ひし形

[名詞]
asymptote

a straight line that a curve approaches indefinitely but never intersects, characterizing the limiting behavior of the curve

[名詞]
trapezoid

(geometry) a flat shape with four flat sides, two of which are parallel

[名詞]
lattice

a structure made of strips of wood, metal, or other rigid material arranged in a criss-crossed, grid-like pattern

[名詞]
oblong

a rectangular figure that has unequal adjacent sides with arched angles

[名詞]
lozenge

(geometry) a figure with four sides and two opposite angles more than 90° and two of less than 90°

[名詞]
icosagon

a polygon with twenty sides and twenty angles

[名詞]
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