Geometry in the Real World

Parker Bowlin

1st block

Mrs. Sykes

Point

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

Line (Segment)

• a part of a line that is bounded by two end points, and contains every point on the line between its end points

Plane

• An undefined term in Geometry, a flat surface that has no thickness, and extends forever.

Angle

• A figure formed by two rays with a common endpoint.

Perpendicular Lines

• Line that intersect at 90 degree angles.

Parallel Lines

• Lines in the same plane that do not intersect.

Triangle

• Three sided polygon.

Right Triangle

• A triangle with one right angle.

Pentagon

• A five-sided polygon.

Hexagon

• Six-sided polygon.

Square

• A quadrilateral with four congruent sides and four right angles.

Rectangle

• A quadrilateral with four right angles.

Trapezoid

• A quadrilateral with exactly one pair of parallel lines.

Parallelogram

• A quadrilateral with two pairs of parallel sides.

Circle

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

Cylinder

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

Sphere

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

Obtuse Triangle

• A triangle with one obtuse angle.

Acute Triangle

• A triangle with three acute angles.

Quadrilateral

• A four-sided polygon.