two coplanar lines that never intersect
What are parallel lines?
m/_2=107^@
m/_4=?
Justify
What is 107 degrees? Vertical angles are congruent.
The sum of all interior angle measures in a triangle.
What is 180 degrees?
adjacent angles whose sides form a line
What is a linear pair?
Lines that intersect at right angles
What are perpendicular lines?
On worksheet problem 2,
m/_a = ?
What is 127 degrees?
Two angles whose sum is 180 degrees
What are supplementary angles?
(or What is a linear pair?)
m || n
m/_3=71^@
m/_5= ?
Justify.
What is 71 degrees?
lines are parallel -> alt-interior angles congruent
Solve for ?
What is 58 degrees?
The congruent non-adjacent angles formed by two intersecting lines
What are vertical angles?
An angle whose measure is less than 90 degrees
What is an acute angle?
On worksheet problem 1,
m/_b = ?
What is 112 degrees?
Any two angles that have the same measure.
What are congruent angles?
m || n
m/_3=64^@
m/_6=?
Justify.
What is 116 degrees?
lines are parallel -> ss interior angles supplementary
Solve for ?
what is 30 degrees?
If this pair of angles is congruent, you know lines are parallel.
What are corresponding angles? or
What are alternate-interior angles? or
What are alternate-exterior angles?
Part of a line consisting of an endpoint an all the points on the line that are on one side of the endpoint
What is a ray?
On worksheet problem 7,
m/_b = ?
What is 54 degrees?
A line that intersects two or more lines at distinct points
What is a transversal?
m/_5=70 and
m/_7=4x-6
Solve "for " x.
what is x=19?
Solve for x.
What is -11?
These angles are supplementary when lines are parallel.
What are same-side interior angles?
(reminder C)
Lines that do not lie in same plane and do not intersect
What are skew lines?
On worksheet problem 5,
m/_c = ?
What is 42 degrees?
A pair of angles whose measures add up to 90 degrees.
What are complementary angles?
m/_1=3x-25
m/_2=2x
m/_1=?
What is 98 degrees?
The measures of the three angles in the triangle are ____, ____ and ____.
What are 30, 60, and 90?
When a transversal intersects two lines, this pair of angles are both inside angles, they are on opposite sides of transversal and they are not a linear pair.
What are alternate interior angles?
(reminder: Z)
In a triangle, the inside angles that are not adjacent to an exterior angle.
What are remote interior angles?
On worksheet problem 6,
m/_b = ?
What is 55 degrees?
Two coplanar angles that share a side and a vertex (but have no common interior points)
What are adjacent angles?
m || n
m/_7=2x
m/_8=4x
m/_2= ?
what is 120 degrees?
solve for x
What is x=-6?
This pair is in matching positions above or below the transversal and is on the same side of the transversal.
What are corresponding angles?
(reminder: F)
A pair of _______ are always congruent, but congruent angles are not always _______.
(Same term goes in both blanks.)
What is a vertical angles? or
What are right angles?
On worksheet problem 3,
m/_a = ?
What is 35 degrees?