vocab
what does interior mean
the inner of the two angles formed where two sides of a polygon come together
what shape has six sides
hexagon
line
A line through the vertex of an angle that divides it into two equal angles.
What is used to form angles?
Two rays that share a common endpoint
what is slope
the ratio of change along the y-axis to the change along the x-axis between any two points
parallel lines
Lines that never intersect
what shape has 8
octagon
circumference
the distance around a circle
what is an angle bisector
a ray that divides an angle into two congruent angles
what can slope be interpreted as
rate of change
Coplanar
in the same plane.
what shape has 5
pentagon
angle
a figure which is formed by two rays or lines that shares a common endpoint
what are complementary angles
two angles with measures that have a sum of 90
what form is y=mx+b
slope intercept form
angle bisector
a line that splits an angle into two equal angles
what shape has 7 sides
heptagon
ray
has a starting point but no ending point
what are supplementary angles
two angles with measures that have a sum of 180
what form is y-y1=m(x-x1)
transversal
a line that intersects a system of lines
what shape has 22 sides
dodecagon
chord
is a straight line segment whose endpoints both lie on a circular arc.
adjacent angles
two angles that lie in the same plane and have a common vertex and side but no common interior points
Find the slope of the line containing the following points (-2,5) (4,7)
1/3