Geometric Foundations

Find the length of the missing side. 

• 20 in.

• 68 in.

• 16 in.

• 80 in.

What is the formula below used for?

• To find the distance between two points

• To find the slope between two points

• To find the midpoint between two points

Which line has a negative slope?

• C

• B

• A

• D

-6x + y = 2

y = 6x - 5

These lines are...

• Parallel

• Perpendicular

• Neither

Name the intersection of Line c and Plane R

• Point J

• Line HK

• Point K

• Line MN

What does the image show? 

• a ray

• a line

• a line segment

• a point

What is the difference between a LINE SEGMENT and a LINE?

• Line Segments are two-dimensional, Lines are one-dimensional

• Lines can be represented on single planes; Line Segments can only be represented on multiple planes.

• Line Segments have finite lengths; Lines go on forever.

• Line segments are geometric figures; Lines are not.

Part of a line. Has one endpoint and continues on forever in one direction.

• Line Segment

• Line

• Ray

• Point

Which terms are considered undefined terms in Euclidean geometry?

• Point, plane, line segment

• Point, line, plane

• Line, plane, angle

• Point, line, ray

In a geometric system, which would best describe how postulates differ from theorems?

• Postulates do not require a proof and are presumed true, while theorems are statements requiring proof.

• Postulates are statements that require proof, while theorems cannot be proven.

• Both postulates and theorems do not require proof and are assumed to be true.

• There is no difference between postulates and theorems.