Základní podstatná jména - Tvary

a completely round, plain shape

kruh

a shape with four equal straight sides and four right angles, each measuring 90°

čtverec

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

trojúhelník

(geometry) a flat shape with four right angles, especially one with opposing sides that are equal and parallel to each other

obdélník

a shape that is wide in the middle and narrow at both ends

ovál

a shape with four equal, sloping straight sides, forming a point at the top and another at the bottom

kosočtverec

a shape with five or more points, representing a star in the sky

hvězda

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

sféra

a figure, either hollow or solid, with six equal square sides

krychle

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

cylinder

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

kužel

a solid object with a square base and four triangular sides joined to a point on the top

pyramida

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

kuboid

either half of a sphere

polokoule

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

prizma

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

paralelogram

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

trapéz

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

půlměsíc

a mark or an object formed by two short lines or pieces crossing each other

kříž

(geometry) a curved shape or design that gradually winds around a center or axis

spirála

a four-sided shape with two pairs of equal-length adjacent sides

kosočtverec

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

pravouhlý trojúhelník

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

kosočtverec

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

spheroid

any half of a circle

půlkruh

a geometric shape with five angles and five straight sides

pětiúhelník

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

šestiúhelník

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

heptagon

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

osmiúhelník

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

devítiúhelník

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

dekagon

a five-pointed star

pentagram

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

hexagram

(geometry) a shape that consists of a line alternating its direction to left and right

zákruta

(geometry) a flat figure consisting of eleven straight sides and eleven angles

hendekagon

(geometry) a flat figure that consists of twelve sides and twelve angles

dodekagon

a polygon with thirteen sides and thirteen angles

tridekagon

a rectangular figure that has unequal adjacent sides with arched angles

oblong,prodloužený obdélník

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

torus

a line or shape that is not straight and bends gradually

křivka

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

paralela

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

elipsa