Lines
A series of points that extends in opposite directions without end?
A line
Two opposite angles formed by intersecting lines.
What are vertical angles?
A triangle whose angles each measure less than 90 degrees.
What is an acute triangle?
Find the complement to a 30 degree angle
60 degree angel
What is a section of a line that has one endpoint and that extends forever in one direction?
A ray
Two angles that share a vertex and a common side.
What are adjacent angles?
A triangle with two sides the same length.
Isosceles triangle
Determine the supplement to an angle that measures 125 degrees
55 degree angle
A section that has two endpoints?
What is a line segment?
Pairs of angles which lie on the same side of a transversal and are in the 'same position'.
Corresponding angles.
A triangle with one angle greater than 90 degrees.
Obtuse triangle.
A triangle has two angles who measure 40 degrees and 30 degrees. What is the measure of the third angle?
110 degrees
A line that intersects a set of parallel lines
What is a transversal?
Two angles whose sum is 90 degrees.
What are complementary angles?
A triangle with a 90 degree angle and no sides the same length
Right, scalene triangle.
If two completementary angles are represented by 2x+1 and 4x+5, determine the value of x.
x = 14
Two lines that go one forever and will never intersect.
What are parallel lines?
A pair of angles which lie on opposite sides of the transversal on the interior of a pair of lines.
What are alternate interior angles?
All angles in every triangle will add up to this number of degrees
180 degrees
The angles of a triangle are represented by the expressions x, 2x and 3x, What is the value of x?
x = 15