1.
Acute-an angle that measures less than 90 degrees
2.
Degrees-a unit for measuring angles
3.
Right Angle-an angle that measures exactly 90 degrees
4.
Obtuse-an angle that measures more than 90 degrees but less than 180 degrees
5.
Straight Angles-an angle that measures exactly 180 degrees
6.
Collinear Points-two or more points that lie on the same straight line
7.
Compass-a tool used for drawing circles and arcs, essential in geometric constructions
8.
Concave-a shape or function that curves inward, creating a dent or indentation
9.
Convex-a property of sets or functions where, for any two points within the set or on the function's graph, the line segment connecting those points is entirely contained within the set or lies above/on the graph
10.
Congruent Segments-line segments that have the same length
11.
Construction-drawing geometric figures using only a compass and straightedge (an unmarked ruler)
12.
Coordinate-an ordered set of numbers that define the position of a point on a plane or in space
13.
Coplanar-two or more objects (like points, lines, or other geometric shapes) lie in the same plane
14.
Distance-the numerical measurement of the length of the space between two points
15.
Diagonal-a line segment that connects two non-adjacent vertices of a polygon or polyhedron
16.
Intersection-the set of elements or points that are common to two or more objects or sets
17.
Linear Pair-two adjacent angles that form a straight line
18.
MidPoint-the point that lies exactly halfway between the two endpoints of the segment
19.
Plane-a flat, two-dimensional surface that extends infinitely in all directions
20.
Space-a set with a defined structure that establishes relationships between its elements
