Show:
Points, Lines, and Planes
Lines and Segments
Triangles
Angles
Miscellaneous
100
The three undefined terms in Geometry.
What are point, line, and plane?
100
Coplanar lines that never intersect.
What are parallel lines?
100
A triangle with all angles less than 90 degrees.
What is an acute triangle?
100
Two angles that add to 90 degrees.
What are complimentary angles?
100
A comparison of 2 quantities or values.
What is a ratio?
200
Any two points determine this.
What is a line?
200
Lines that form 90 degree angles at their intersection.
What are perpendicular lines?
200
The two congruent sides of an isosceles triangle.
What are legs?
200
Two angles that add to 180 degrees.
What are supplementary angles?
200
2 equivalent ratios.
What is a proportion?
300
Any three non collinear points determine this.
What is a plane?
300
A line or ray that divides a segment or angle into 2 congruent parts.
What is a bisector?
300
The side opposite the right angle in a right triangle.
What is a hypotenuse?
300
Angles that share a ray.
What are adjacent angles?
300
Figures that have congruent angles, but proportional sides.
What are similar figures?
400
A statement that is accepted as fact or truth.
What is a postulate or axiom?
400
A line that passes through 2 parallel lines in 2 different places.
What is a transversal?
400
a^2 + b^2 = c^2
What is the Pythagorean Theorem?
400
The congruent angles opposite each other when two lines cross.
What are vertical angles?
400
Non-coplanar lines that never intersect.
What are skew lines?
500
The intersection of two planes.
What is a line?
500
If B is between A and C, then AB + BC = AC.
What is the segment addition postulate?
500
A three sided REGULAR polygon.
What is an equilateral triangle?
500
If point B is on the interior of angle AOC, then the measure of angle AOB plus the measure of angle BOC equals the measure of angle AOC.
What is the angle addition postulate?
500
The branch of mathematics concerned with questions of shape, size, relative position of figures, and the properties of space.
What is geometry?