Polygons
What is a two-dimensional (flat) shape with three or more sides?
This is the definition of a triangle.
What is a polygon with exactly three sides and three interior angles?
This is the definition of a line.
What is a set of connected points that continues in both directions without end?
An angle with a measure greater than 0 degrees and less than 90 degrees.
What is an acute angle?
This is the definition of a circle.
What is a two dimensional shape made by drawing a curve that is always the same distance from a point called the center?
This polygon has four sides, with both pairs of opposite sides parallel.
What is a parallelogram?
A triangle with a 90 degree angle.
What is a right triangle?
Two lines or line segments that intersect at right angles.
What is perpendicular?
An angle with a measure greater than 90 degrees and less than 180 degrees.
What is an obtuse angle?
The line segment between two points on a circle that passes through the center of the circle.
What is the diameter?
This polygon has four sides with exactly 1 pair of which are parallel.
What is a trapezoid?
A triangle with exactly 2 congruent sides.
What is an isosceles triangle?
Lines that are always the same distance apart.
What are parallel lines?
An angle with a measure of exactly 180 degrees.
What is a straight angle?
Any line sement that extends from the center of a circle to a point on the circumference of a circle.
This polygon has exactly six congruent sides and all interior angles are 120 degrees.
What is a regular hexagon?
A triangle whose sides are all of different lengths.
What is a scalene triangle?
The set of all points between two endpoints.
What is a right angle?
The distance around a circle, cylinder, or widest part of a sphere.
What is the circumference?
This polygon has four congruent sides.
What is a rhombus?
The sum of all the interior angles of any triangle.
What is 180 degrees?
Lines that contain one common point.
An angle whose measure is zero degrees.
What is a zero angle?
Approximately 3.14 (pi)
What is the value of any circle's circumference divided by its diameter?