Matemática e Avaliação ACT - Geometry

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

inclinação

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

arco

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

raio

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

diâmetro

the total length of the external boundary of something

perímetro

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

circunferência

the measurement of a piece of land or a flat surface

área

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

ângulo

an angle measuring exactly 90 degrees

ângulo reto

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

ângulo vertical

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

ângulo interno

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

ângulo agudo

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

ângulo consecutivo

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

obtuso

a measuring instrument used to measure and draw angles

transferidor

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

perpendicular

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

polígono

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

paralelogramo

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

tetraédrico

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

trapezoide

a geometric shape with five angles and five straight sides

pentágono

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

quadrilátero

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

losango

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

epicíclo

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

hipérbora

(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

parábola

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

elipse

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

triângulo retângulo

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

triângulo agudo

a type of triangle with all three sides of equal length

triângulo equilátero

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

triângulo escaleno

describing a triangle with at least two sides of equal length

isósceles

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

hipotenusa

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

cilindro circular reto

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

pirâmide retangular

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

assimetria

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

vértice

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

diagonal

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

congruente

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

paralelo

a line that divides a shape into two congruent parts

linha de simetria

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 geométrica

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

área de superfície

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

transversal

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

quadrante

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

assíntota

to divide something into two equal parts

bissecionar

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

corda

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

transladar