052. Numbers and Shapes

a completely round, plain shape

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

a geometric shape with five angles and five straight sides

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

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

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

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

having a shape like a circle

having the shape of a pentagon, which is characterized by five straight sides and five angles

shaped like a rectangle, with four right angles

shaped like a triangle, with three sides and three angles

having four even sides and four right angles, forming a shape resembling a regular square

having the shape or characteristics of an octagon, which is a polygon with eight sides and eight angles

rounded in shape but wider in one direction, such as the shape of an egg

an angle measuring exactly 90 degrees

the outermost surface extending along one edge of an object

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

any half of a circle

the distance around the external boundary of something

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

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

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

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

either half of a sphere

a branch of mathematics that deals with addition, subtraction, multiplication, etc.

the process or act of taking away one number from another

the process or action of adding a number to itself a specific number of times

the process of calculating how many times a number can contain another number

used to multiply a number by another

(mathematics) to add a number to itself a certain number of times