Geometry in the Real WorldGeometry in the Real World“Black Friday Shopping!”“Black Friday Shopping!”

By Kourtney GerikBy Kourtney Gerik

Block 2Block 2

PointPoint

An undefined term in geometry, it names a An undefined term in geometry, it names a location and has no size.location and has no size.

Line (Segment)Line (Segment)

A part of a line consisting of two endpoints A part of a line consisting of two endpoints and all points between them.and all points between them.

PlanePlane

An undefined term in geometry, it is a flat An undefined term in geometry, it is a flat surface that has no thickness and extends surface that has no thickness and extends forever (Ceiling tiles… not light fixture)forever (Ceiling tiles… not light fixture)

AngleAngle

A figure formed by two rays with a A figure formed by two rays with a common endpointcommon endpoint

Perpendicular LinesPerpendicular Lines

Lines that intersect at 90 degreesLines that intersect at 90 degrees

Parallel LinesParallel Lines

Lines in the same plane that do not Lines in the same plane that do not intersect intersect

TriangleTriangle

A three-sided polygonA three-sided polygon

Right TriangleRight Triangle

A triangle with one right sideA triangle with one right side

PentagonPentagon

A five-sided polygonA five-sided polygon

HexagonHexagon

A six-sided polygonA six-sided polygon

SquareSquare

A quadrilateral with four congruent sides A quadrilateral with four congruent sides and four right anglesand four right angles

RectangleRectangle

A quadrilateral with four right anglesA quadrilateral with four right angles

TrapezoidTrapezoid

A quadrilateral with exactly one pair of A quadrilateral with exactly one pair of parallel sidesparallel sides

ParallelogramParallelogram

A quadrilateral with two pairs of parallel A quadrilateral with two pairs of parallel sidessides

CircleCircle

The set of points in a plane that are a fixed The set of points in a plane that are a fixed distance from a given point called the distance from a given point called the center of the circlecenter of the circle

CylinderCylinder

A three-dimensional figure with two A three-dimensional figure with two parallel congruent circular bases and a parallel congruent circular bases and a curved lateral surface that connects the curved lateral surface that connects the basesbases

SphereSphere

The set of points in space that are a fixed The set of points in space that are a fixed distance from a given point called the distance from a given point called the center of the spherecenter of the sphere

OvalOval

Having the general form, shape, or outline Having the general form, shape, or outline of an egg; egg-shaped.of an egg; egg-shaped.

ConcurrentConcurrent

Three or more lines that intersect at one Three or more lines that intersect at one point.point.

RhombusRhombus

An oblique-angled equilateral An oblique-angled equilateral parallelogramparallelogram