Lines
Two lines that are the same distance apart and will never touch
What are parallel lines
This is the distance from side to side through the center.
What is diameter
Two objects that have the same side lengths, same area, and same angles measures.
What is congruent.
Lines that intersect to form a right angle
What is perpendicular
This is the distance around the exterior of a circle.
What is circumference.
Vertical angles are.
What are congruent and formed by intersecting lines.
This has one endpoint and continues in one direction forever
What is a ray
An angle that is greater than 90 degrees
What is obtuse
This is the formula used to determine area of a circle.
What is pir2.
These angles have a sum of 180 degrees
What are supplementary
This is found by multiplying pi and the length of the diameter.
What is circumference.
This shape has seven sides.
What is a heptagon.
This is a line that intersects 2 parallel lines.
What is a transversal.
These angles are on opposite sides of a transversal, inside 2 parallel lines.
What are alternate interior angles.
This is the tool used to draw perfect circles.
What is a compass.