a segment joining the center of a circle to a point of the circle
What is Radius
100
polygons whose vertices can be matched in 1:1 correspondence so that corresponding angles
What is Similar Polygons
100
An angle whose measure is less than 90°.
What is Acute angle
100
A parallelogram with four right angles.
What is Rectangle
100
A point that divides a segment into two equal segments.
What is Midpoint
200
two or more circles that lie in the same plane an have the same center
What is concentric circles
200
The comparison of two numbers by division. The quotient is the ratio of the two numbers.
What is Ratio
200
Any closed figure bounded by three or more segments that only intersect at their endpoints.
What is polygon
200
A rectangle with all sides equal and four right angles.
What is square
200
The set of all possible points.
What is space
300
the intersection of a sphere and a plane containing the center of the sphere
What is great circle
300
An altitude of a triangle is a perpendicular line from a vertex to the opposite side.
What is Altitude of a Triangle
300
A polygon with all the angles equal and all the sides equal.
What is regular polygon
300
The two angles that include the base of an isosceles triangle.
What is base angles
300
From the Greek for "earth measure."
What is Geometry
400
the set of all points that are the same distance from a given point
What is sphere
400
For any positive real numbers a, b, and x, if then x is called the
What is geometric Mean
400
A statement that is easily proved by applying a theorem.
What is corollary
400
The angle formed by the two equal sides of an isosceles triangle.
What is vertex angle
400
Reasoning that leads from statement of a general fact to a specific conclusion
What is deductive reasoning
500
the union of two points of a circle, not the end points of a diameter; and all points of the
circle that are in the exterior of the central angle whose sides contain the two points.
What is Major Arc
500
With respect to an acute angle of a right triangle, the ratio of the side adjacent to the angle over the hypotenuse.
What is Cosine ratio
500
Two lines that do not lie in the same plane.
What is Skew lines
500
The situation when each member of a set, such as angles of a triangle, can be paired with one and only one member of another set.
What is one-to-one correspondence
500
A statement formed by interchanging the hypothesis and the conclusion in a conditional statement.