Unit 1 - Tools of Geometry Vocabulary

What is a specific location on a line or plane that is labeled with a capital letter called?

• Line

• Segment

• Point

• Angle

What is a series of points that extends forever in opposite directions called?

• Line

• Segment

• Ray

• Angle

What term describes three or more points that lie on the same plane?

• Collinear

• Coplanar

• Perpendicular

• Parallel

What is a line that intersects a segment at its midpoint called?

• Perpendicular

• Bisector

• Parallel

• Tangent

What is an angle that measures exactly 90 degrees called?

• Acute angle

• Obtuse angle

• Right angle

• Straight angle

What is a polygon with all interior angles measuring less than 180 degrees called?

• Concave polygon

• Convex polygon

• Regular polygon

• Irregular polygon

What is a triangle with exactly one right angle called?

• Acute triangle

• Obtuse triangle

• Right triangle

• Equilateral triangle

What is a quadrilateral with two pairs of parallel sides called?

• Trapezoid

• Parallelogram

• Rhombus

• Kite

What is a tool with an edge free from curves, one sharp end, and one pencil used for drawing circles called?

• Protractor

• Ruler

• Compass

• Divider

What is the term used to describe the point where three or more lines, rays, or segments intersect in the same point?

• Centroid

• Incenter

• Point of concurrency

• Circumcenter