Geometry: Defined and Undefined Terms

Geometry literally means?

• Earth measurement

• Measurement earth

• Earth or measurement

• Measurement of the earth's crust

What are the three undefined terms?

• Points, lines, and rays

• Planes, lines, and segments

• Rays, segments, and planes

• Points, lines, and planes

A line is denoted by ______ or _______

• By infinite number of points/ By numbers

• By symbols/ By Roman numerals

• By two capital letters/ By one lower-case letter

• By two upper-case letter/ By two lower-case letters

Two points are collinear if and only if

• They lie on the same plane

• They lie on the same set of parallel lines

• They lie on the same angle

• They lie on the same line

A ray has how many endpoint/s?

• One

• Two

• Three

• Infinite

An angle contains a common point called a vertex and _______

• One noncollinear ray

• Two noncollinear rays

• One noncollinear plane

• Two noncollinear planes

Which of the Platonic solids have 8 faces?

• Tetrahedron

• Hexahedron

• Octahedron

• Icosahderon

How many lines can intersect on a plane?

• One

• Two

• Three

• Infinite

Skew lines are _____?

• Lines that lie on the same plane and intersect

• Lines that do not lie on the same plane and intersect

• Lines that lie on the same plane and do not intersect

• Lines that do not lie on the same plane and do not intersect

It is a branch of Geometry that uses the axiomatic method, compass and straightedge to solve problems in Geometry

• Euclidean Geometry

• Projective Geometry

• Synthetic Geometry

• Non-Euclidean Geometry