Angles
An angle whose measure is between 0 and 90 degrees.
What is acute
What do you call a polygon with 3 sides
Triangle
This object is one-half of the diameter. (The distance from the center to the edge)
What is the radius?
A polygon that has six sides.
What is a hexagon?
A triangle that has one 90 degree angle
Right triangle
An object that divides an angle into two congruent angles.
What is an angle bisector?
A triangle that has all equal angles.
What is an equiangular triangle?
What do you call two lines that never intersect each other
Parallel lines
A polygon with 4 sides.
What is a quadrilateral?
An angle that is equal to 180 degree
Straight angle
The sum of these two angle measures is 180 degrees.
supplementary angles
A triangle that has no congruent sides.
What is a scalene triangle?
Two lines that intersect to form right angle (90 degree) are called
Perpendicular lines
This is a polygon that has eight sides.
This irrational number has an approximate value of 3.14159...and used for circle's area and circumference.
What is Pi?
Two angles that share a common side and a common vertex.
What are adjacent angles?
A triangle with an obtuse angle is called
Obtuse triangle
This is half a circle.
Semicircle
This is object has one endpoint and goes on forever in one direction.
What is a ray?
The point on a line segment that is dividing it into two equal parts
midpoint
Congruent angles formed by intersecting lines, rays, or segments. They are facing each other
Vertical angels
A triangle with two equal sides is called
Isosceles triangle
A line that intersects two or more parallel lines is called
transversal
A part of a line consisting of two end points and all the points between them
Segment
A triangle with no same sides (All three sides are different)
scalene triangle