nm standards: gt-a-7
DESCRIPTION
NM Standards: GT-A-7. Parallel Lines. Coplanar lines that do not intersect. The symbol || means “is parallel to” The red arrows also mean “is parallel to”. Parallel Planes. Two or more planes that do not intersect. R. Q. Skew Lines. - PowerPoint PPT PresentationTRANSCRIPT
Parallel LinesParallel Lines
Coplanar lines that do not intersect.
The symbol || means “is parallel to”
The red arrows also mean “is parallel to”
Skew LinesSkew Lines
Two or more lines that do not intersect but are not parallel.
Skew lines are always on different planes.
mn
Lines m & n are skew lines
TransversalTransversalA line that intersects two or more other lines in a plane at different points
The two or more lines do NOT have to be parallel.
BUS STATION Some of a bus station’s driveways are shown. Identify the sets of lines to which line v is a transversal.
Answer: If the lines are extended, line v intersects lines u, w, x, and z.
BUS STATION Some of a bus station’s driveways are shown. Identify the sets of lines to which line y is a transversal.
Answer: lines u, w, x, z
BUS STATION Some of a bus station’s driveways are shown. Identify the sets of lines to which line u is a transversal.
Answer: lines v, x, y, z
BUS STATION Some of a bus station’s driveways are shown. Identify the sets of lines to which line w is a transversal.
Answer: lines v, x, y, z
HIKING A group of nature trails is shown. Identify the sets of lines to which each given line is a transversal.
Answer: lines c, d, e, f
Answer: lines c, d, e, f
Answer: lines a, b, d, e, f
a. line a
b. line b
c. line c
d. line dAnswer: lines a, b, c, e, f
Types of AnglesTypes of AnglesExterior Angles: Angles that lie outside the lines cut by a transversal
Interior Angles: Angles that lie between the lines cut by a transversal
Consecutive Interior Angles: Pairs of interior angles formed by a transversal that lie on the same side of the transversal and share a side.
Alternate Exterior Angles: Pairs of exterior angles formed by a transversal that lie on opposite sides of the transversal.
Alternate Interior Angles: Pairs of interior angles formed by a transversal that lie on opposite sides of the transversal.
Corresponding Angles: Pairs of angles formed by a transversal that lie on the same side of the transversal, but one is interior and one is exterior.
Answer: corresponding
Identify as alternate interior, alternate exterior, corresponding, or consecutive interior angles.
Answer: alternate exterior
Identify as alternate interior, alternate exterior, corresponding, or consecutive interior angles.
Answer: corresponding
Identify as alternate interior, alternate exterior, corresponding, or consecutive interior angles.
Answer: alternate exterior
Identify as alternate interior, alternate exterior, corresponding, or consecutive interior angles.
Answer: alternate interior
Identify as alternate interior, alternate exterior, corresponding, or consecutive interior angles.
Answer: consecutive interior
Identify as alternate interior, alternate exterior, corresponding, or consecutive interior angles.