Vocabulary for IELTS Academic (Band 8-9) - Geometry

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

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

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

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

(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

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

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

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

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

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

a rectangular figure that has unequal adjacent sides with arched angles