Geometry Vocabulary Tes Flashcards
What has no congruent sides
Scalene triangle
What has all acute sides
Acute triangle
They do not lie in the same plane and are neither parallel not intersecting
Skew lines
The ____ of a figure is the number of square units a figure enclosed
Area
The distance around a circle is its what
Circumference
Any segment perpendicular to the line containing the base of the figure and drawn from the side opposite the base is the what
Altitude
What are formed by two intersecting lines and are opposite to each other
Vertical angles
A _____ has at least two congruent sides
Isosceles triangle
A polygon with all sides and all angles congruent is a what
Regular polygon
Angles between two parallel lines and on opposite sides of the transversal are called what
Alternate interior angles
A segment with both end points on a circle
Chord
A set of points in a plane that are all the same distance from a given point, called the center, is a
Circle
If The sum of the measures of two angles is 90 degrees the angles are
Complementary
What means equal
Congruent
The ____ of a circle is a segment that passes through the center of a circle and has both end points on the circle
Diameter
A pair of angles outside of two parallel lines and on opposite sides of a transversal
Alternate exterior angles
Angles whose sum is 180 degrees are
Supplementary
A series of points that extend in opposite directions without end is a
Line
A _________ has three sides the same length
Equilateral triangle
An______ is a number that cannot be written as a ratio of two integers. As decimals, this type of number neither terminates or repeats
Irrational number
A segment that connects The center of the circle to the circle is a
Radius
In any right triangle the sum of the squares of the lengths of the legs is equal to the square of the length of the hypotenuse is known as the
Pythagorean theorem
The side opposite the right angle in a right triangle is the
Hypotenuse
Lines that are in the same plane that never intersect
Parallel lines
___________ share a vertex and a side but have no interior points in common
Adjacent
An ________ includes one obtuse angle
Obtuse triangle
The ratio of a circles circumference c to its diameter d
Pi
They intersect to form right angles
Perpendicular lines
Part of a line with one endpoint and all the points of the line on one side of the endpoint
Ray
The ______ of a polygon is any point point where two sides of a polygon meet
Vertex
A ______ has two endpoints and all the points of the line between the points
Segment
The _____ is the distance around a figure
Perimeter
A ______ is the segment that connects two nonconsecutive vertices
Diagonal
A line that intersects two other lines in different points is a
Transversal
A closed plane figure with at least three sides is a what
Polygon
A number that when multiplied by itself equals the given number is a
Square root
