Angles
An angle that measures 90 degrees.
What is a right angle?
A tool used to measure angles.
What is a protractor?
A shape that has six sides.
What is a hexagon?
When an object is moved to a new location and keeps the same orientation.
What is a translation?
Two angles whose sum is 90 degrees.
What is a complementary angle?
An angle that measures more than 0 but less than 90 degrees.
What is an acute angle?
A part of a line that has one endpoint and extends forever in one direction.
What is a ray?
This triangle has two equal sides.
What is an isosceles triangle?
When an object is turned around about a point.
What is a rotation?
The flat surface that extends forever in all directions.
What is a plane?
An angle that measures more than 90 degrees but less than 180 degrees.
What is an obtuse angle?
A figure formed by two rays with a common endpoint.
What is an angle?
The branch of mathematics concerned with the properties and relations of points, lines, surfaces, solids, and higher dimension analogs.
What is geometry?
A double reflection over parallel lines is also known as a . . .
What is a translation?
Two angles whose sum is 180 degrees.
What is a supplementary angle?
An angle that measures 180 degrees.
What is a straight angle?
A synonym for equal in measure
What is congruent?
3.14159 These numbers are...
What are the first six digits of pi?
Rotating an object CCW.
What is counterclockwise?
The point where the angle bisectors of the sides of a triangle intersect.
What is incenter?
The common endpoint of the two rays that form an angle.
What is a vertex?
The kind of lines that never intersect and do not lie in the same plane.
What is skew lines?
This name of the point that bisects a segment.
What is a midpoint?
A double reflection over intersecting lines.
What is a rotation?
The point where the perpendicular bisectors of the sides of a triangle intersect.
What is a circumcenter?