Triangles
Triangles where all sides are the same length.
Is equilateral.
This is used to measure angles
protractor
what is part of a line called?
line segment
The distance around a circle
Is circumference
the original geometric shape
pre image
Isosceles triangle
A angle formed by two sides next to each other on a polygon
included angle
Points on the same straight line.
Collinear
Uses figures in a plane and algebra to prove things
coordinate proof
Flip over a line called line of reflection
reflexion
A triangle with all sides that are different lengths
scalene triangle
The angle with sides that are formed by two intersecting lines.
vertex angle
This part of the line has one endpoint and continues in one direction forever
Is a ray.
A shape that has 6 sides is called
is a hexagon
slide that moves all points of the original shape the same distance in the same direction
translation
A triangle with one angle greater than 90 degrees
obtuse triangle
A segment, line, or plan that intersects at the midpoint.
Angle bisector
This is a closed figure with at least 3 sides.
What is a polygon.
A right triangle has one angle that is 45 degrees. What is the measure of the 3rd angle
is 45 degree
turns the transformation around a fixed point called the center of rotation
is a rotation
All angles in every triangle will add up to this number of degrees
Is 180 degrees
Two angles formed by the base and the congruent sides
base angle
Two lines in the same plane that are equal distance from each other but never intersect.
Parallel lines
an exact location in space
a point
Takes the pre image and changes the position sizes and shape of it
transformation