IELTS Học Thuật (Band 8 Trở Lên) - Geometry

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

hình bình hành

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

tứ diện

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

khối tứ diện

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

hình đa diện mười hai mặt

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

hình icosahedron

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

độ cong

(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

parabol

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

hyperbol

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

torus, vòng

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

frustum, khối cắt

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

hình lưỡi liềm, trăng lưỡi liềm

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

hình xoắn, bề mặt xoắn

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

vành, annulus

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

hình thoi, thoi

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

đường tiệm cận

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

hình thang

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

lưới, mạng lưới

a rectangular figure that has unequal adjacent sides with arched angles

hình chữ nhật,hình chữ nhật dài, round-edged rectangle

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

hình thoi, lưới

a polygon with twenty sides and twenty angles

icosagon