What is the branch of mathematics that focuses on points, lines, surfaces, solids, and angles?
Geometry
100
What is a plane figure with at least three (3) straight sides and angles?
Polygon
100
What is part of a line consisting of two points and all points between them?
Line Segment
100
What is a figure formed by two rays, with a common endpoint?
Angle
100
What are angles that have the same degree measure?
Congruent Angles
200
What is a statement that is accepted as true without proofs?
Postulate
200
What is a four-sided flat shape with opposite sides that are parallel and equal in length?
Parallelogram
200
What is part of a line that starts at an endpoint and extends forever in one direction?
Ray
200
What is the common endpoint of an angle (a point where two lines meet)?
Vertex
200
What are two nonadjacent angles formed by two intersecting lines?
Vertical Angles
300
What is a written explanation using definitions, theorems, and postulates to come to a conclusion about a geometric statement?
Proof
300
What is a four-sided figure?
Quadrilateral
300
What are segments that have the same length?
Congruent Segments
300
What is an angle that measures 90 degrees?
Right Angle
300
What are two angles in the same plane with a common vertex and a common side, but with no common interior points?
Adjacent Angles
400
What is statement that has been proven by mathematical reasoning?
Theorem
400
What is a quadrilateral with only one pair of parallel sides?
Trapezoid
400
What are points that lie on the same line?
Collinear Points
400
What is an angle formed by two opposite rays that measures 180 degrees?
Straight Angle
400
What is a ray that divides an angle into two (2) congruent angles?
Angle Bisector
500
a. Who was the Greek mathematician known as the "Father of Geometry"?
b. What do we call the drawing of shapes with compasses and straightedges?
a. Euclid
b. Constructions
500
a. What is the term for a polygon that curves inward?
b. What is the term for a polygon that curves outward and that has interior angles that measure less than 180 degrees?
a. Concave
b. Convex
500
a. What are coplanar lines that do not intersect?
b. What are coplanar lines that form right angles?
a. Parallel Lines
b. Perpendicular Lines
500
a. What is an angle that measures greater than 90 degrees and less than 180 degrees?
b. What is an angle that measures less than 90 degrees?
a. Obtuse Angle
b. Acute Angle
500
a. What are two angles whose measures add up to 90 degrees?
b. What are two angles whose measures add up to 180 degrees?