ACT Mathématiques et évaluation - Geometry

the measure of how steep a line is, found by dividing the change in height by the change in horizontal distance

pente

(geometry) a part of a circle, which is curved

arc

a unit for measuring angles, defined by the angle made when the radius of a circle is laid along its edge

radian

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

rayon

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

diamètre

the total length of the external boundary of something

périmètre

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

circonférence

the measurement of a piece of land or a flat surface

aire

the amount of space that a substance or object takes or the amount of space inside an object

volume

the space between two lines or surfaces that are joined, measured in degrees or radians

angle

an angle measuring exactly 90 degrees

angle droit

one of a pair of opposite angles made by two intersecting lines, which are always equal

angle vertical

an angle formed between two sides of a polygon that lies inside the shape

angle intérieur

an angle that measures between 0 and 90 degrees, which is less than a right angle (90 degrees)

angle aigu

pairs of angles that share a common side and vertex in a polygon or between intersecting lines

angle consécutif

(of angle) greater than 90 degrees but less than 180 degrees

obtus

a measuring instrument used to measure and draw angles

rapporteur

(of lines or planes) intersecting each other at a 90 degree angle

perpendiculaire

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

polygone

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

parallélogramme

characterized by or resembling a tetrahedron, which has four triangular faces

tétraédrique

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

trapèze

a geometric shape with five angles and five straight sides

pentagone

(geometry) a flat figure with four straight sides and four angles

quadrilatère

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

losange

a small circle whose center moves around the circumference of a larger circle

épicycle

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

hyperbole

(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

parabole

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

ellipse

a flat geometric shape consisting of three straight sides and one right angle

triangle rectangle

a triangle in which all three interior angles are less than 90 degrees

triangle acutangle

a type of triangle with all three sides of equal length

triangle équilatéral

a type of triangle that has all three sides of different lengths

triangle scalène

describing a triangle with at least two sides of equal length

isocèle

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

hypoténuse

a three-dimensional geometric shape with two parallel circular bases connected by a curved surface at a right angle to the bases

cylindre circulaire droit

a three-dimensional geometric shape that has a rectangular base and four triangular faces that meet at a single point called the apex

pyramide rectangulaire

(geometry) a lack of symmetry or equivalence in shape or size between the two sides or parts of something

asymétrie

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 straight line that joins the opposite corners of a flat shape at an angle

diagonale

(in geometry) describing shapes of the same size and form

congru

the side of a geometric shape, usually the one considered as the bottom, from which the height is measured

base

(mathematics) any of the pair of geometric figures such as lines or planes which do not meet or intersect

parallèle

a line that divides a shape into two congruent parts

ligne de symétrie

a series of numbers in which each term after the first is found by multiplying the previous term by a fixed, non-zero number

série géométrique

the total area that the surface of a three-dimensional object occupies

aire de surface

(of a line) intersecting two or more other lines at different points

transversale

one-fourth of a circle, formed by two perpendicular radii and the connecting arc

quadrant

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

asymptote

to divide something into two equal parts

biser

a straight line that touches a curve or surface at exactly one point, known as the point of tangency

tangente

a straight line segment that connects two points on the edge of a circle

corde

(geometry) to move a shape or figure from one position to another without rotating, resizing, or otherwise altering its shape

translater