Geo Terms
a dot that shows a specific location
What is a point?
corner point where 2 rays or lines meet
What is a vertex?
closed shape made with straight lines
What is a polygon?
Statement that is TRUE without proof
What is a postulate
opposite angles are congruent
What is a vertical angle?
straight path from different directions
What is a line?
angle that is less that 90*
What is an acute angle?
total distance around the outside of a shape
What is perimeter?
statement that can be proven
What is a theorem?
angles that make 90*
What are complementary angles?
line that connects two endpoints
What is a line segment?
angle that is exactly 90*
What is a right angle?
amount of flat space inside a shape
What is area?
same angle or line
What is congruent?
angles that added together make 180*
What are supplementary angles?
line that starts at endpoint and goes on forever
What is a ray?
an angle that is more than 90* and less that 180*
What is an obtuse angle?
straight line from the center of a circle to the outside edge
What is a radius?
point that lies in the middle of a line and splits in equal havlves
What is a midpoint?
angles that are next to each other
What are adjacent angles?
A flat surface that stretches forever in all directions
What is a plane?
Angle that makes exactly 180*
What is a straight line
straight line passes through the center connecting 2 points on the edge of the circle
What is a diameter?
Divides and angle or line in equal halves
What is a bisector?
longest leg on of right triangle (across from the 90* angle)
What is a hypotenuse?