Triangles
A triangle with a 90 degree angle is called?
Right triangle
A line segment with both endpoints on the circle
Chord
Name for a 90 degree angle
Right angle
Two lines that will never touch
Parallel lines
A shape that has six sides is called
Hexegon
A triangle that is under 90 degrees
Acute triangle
line segment from the center of the circle to a point on the circle.
Radius
Name for an angle that is under 90 degrees
Acute angle
Lines that intersect each other at a 90 degree angle
Perpendicular
A shape that has five sides are called
Hexagon
A triangle that is over 90 degrees
Obtuse triangle
a line that touches a circle at only one point.
Tangent
Name of an angle that is over 90 degrees
Obtuse angle
One endpoint and continues in one direction
Ray
A shape with eight sides
Octagon
A triangle where all sides are congruent
Equilateral
The distance around a circle
Circumference
The number of degrees in a straight line
180
Part of a line
Line segment
A shape with all four sides congruent
Square
A triangle where no sides are congruent
Scalene
The region enclosed by the circle.
Area
What is used to measure angles?
Protractor
A closed figure with at least three sides
Polygon
A shape with opposite sides congruent