Who am I?
Three terms that are not formally defined in geometry are a __________, a line, and a plane
What is a point
two angles whose measure have a sum of 90 degree
What is complementary angles
angles with the same measure
What is congruent angles
pair of angles on the inner side of the lines cut by transversal
What is alternate interior angles
I am 180 degrees
What is a straight line
A part of a line with two endpoints and all the points in between is a
What is a line segment
What is an acute angle
opposite angles formed by two intersecting lines
What is a vertical angle
on an angle or plygon the point where two sides intercept
What is the vertex
pair of angles that occupy the same relative position of the transversal
What are corresponding angles
two planes intersect at a
What is a line
an angle whose measure is greater than 90 degrees but less than 180 degrees
What is obtuse angle
pairs of angles that share a vertex and one side but do not overlap
What is adjacent angles
a pair of angles on the outer side of two lines cut by a transversal that are on opposite sides of the transversal
What is alternate exterior angles
two lines that never intersect
What are parallel lines
Three points not on the same line define a
What is a plane
two angles whose measures have a sum of 180 degree
What is a supplementary angle
the unit of measure for angles
What is a degree
line that intersects two or more lines
What is a transversal
two lines that intersect at 90 degree angles
What are perpendicular lines
segment of a line that has an endpoint and extends infinitely in one directon is a
What is a ray
tool for measuring angles
What is a protractor
figure formed by two rays with a common endpoint
What is an angle
angle that measures 90 degrees
What is a right angle
pair of interior angles that lie on the same side of the transversal
What are same side interior angles