IELTS académique (bande 6-7) - Geometry

(geometry) a solid or hollow shape with two circular bases at each end and straight parallel sides

cylindre

(geometry) a round object that every point on its surface has the same distance from its center

sphère

(geometry) a closed shape with six straight sides and six angles

hexagone

(geometry) a three dimensional shape with a circular base that rises to a single point

cône

(mathematics) the ratio of the opposite to the adjacent side of a triangle that has one angle of 90°

tangente

a straight line with one endpoint that extends infinitely in the other direction

rayon

a type of triangle that has two sides of equal length and two angles of equal measure

triangle isocèle

(geometry) a polygon consisting of eight straight sides and eight angles

octogone

in geometry, a pattern or shape that exhibits a twisting or spiraling motion, often characterized by continuous, curved lines forming a rotational or helical design

tourbillon

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

sommet

(geometry) a closed plane curve that has two focal points

ellipse

(geometry) a flat shape consisting of three or more straight sides

polygone

a geometric shape with five angles and five straight sides

pentagone

(geometry) a line curved on a conical or cylindrical surface, like a spiral staircase in shape

hélice

(geometry) a flat polygon with ten straight sides and ten angles

décagone

(geometry) a flat shape consisting of nine straight sides and nine angles

nonagone

a seven-sided plane shape consisting of seven line segments or edges that meet at seven interior angles

heptagone

a three-dimensional shape similar to a stretched or compressed sphere

ellipsoïde

a three-dimensional geometric shape with six rectangular faces, resembling a box or a rectangular prism

cuboïde

(geometry) a round 3D shape like a ball that is slightly flattened at the top and bottom points

sphéroïde

(geometry) a solid figure with flat sides and two parallel ends of the same size and shape

prisme

a solid shape made of flat sides that fit together along their edges

polyèdre

a three-sided polygon

trigone

(geometry) a flat star-shaped figure with six points that can be formed by making equilateral triangles on each side of a regular hexagon

hexagone étoilé

an angle that measures either less or more that 90 degrees

angle oblique

an angle that measures greater than 180 degrees but less than 360 degrees

angle réflexe

a straight line from one side of a round object, particularly a circle, passing through the center and joining the other side

diamètre

(geometry) the length of the external boundary of a curved shape, especially a circle

circonférence

the length of a straight line drawn from the center of a circle to any point on its outer boundary

rayon