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3.1 Identify Pairs of Lines and Angles
Parallel Lines Coplanar Do not intersect Segments and rays are parallel if they lie on parallel lines. A D C B Triangles, like those above in red, indicate that 2 lines are parallel.
Parallel planes if they never intersect
A D E H G CB F
A D E H G CB F
Skew Lines: Do not intersect, but do not lie in the same plane. A D E H G CB
A D E H G CB F
A D E H G CB F
Parallel Postulate #13: Parallel Postulate If there is a line and a point not on the line,
Parallel Postulate #13: Parallel Postulate If there is a line and a point not on the line, then there is exactly one line through the point and parallel to the line
Perpendicular Postulate #14: Perpendicular Postulate If there is a line and a point not on the line, then there is exactly one line through the point and perpendicular to the line
Transversal; intersects 2 or more coplanar lines Corresponding Angles Same side of transversal Corresponding position
Alternate Exterior Angles “Alternate” opposite sides of transversal “Exterior” outside of the two lines
Alternate Interior Angles “Alternate” opposite sides of transversal “Interior” inside of the two lines
Consecutive Interior Angles “Consecutive” “together”; same side of the transversal “Interior” inside of the two lines
A#20: Page 150 # 3 - 32
SWLT: Identify angle pairs formed by three intersecting lines GEOMETRY 3.1.
Chapter 3.1: Identify Pairs of Lines and Angles. M11.B.2.1, M11.C.1.2 What angle pairs are formed by transversals?
Unit 3 Definitions. Parallel Lines Coplanar lines that do not intersect are called parallel. Segments and rays contained within parallel lines are also.
Geometry 3.1 Big Idea: Identify pairs of lines and angles Big Idea: Identify pairs of lines and angles.
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3.1 Identify Pairs of Lines and Angles. Parallel Lines Have the same slope Can be contained in the same plane Are everywhere the same distance apart.
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Lesson 3.1 Identify Pairs of Lines and Angles. Definitions Parallel Lines- They don’t intersect and are COPLANAR Perpendicular Lines- They intersect at.
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E.Q. What angle pairs are formed by a transversal?
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PARALLEL LINES & TRANSVERSALS Parallel Lines - lines in the same plane that will never intersect.
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Geometry Section 3.1 Identify Pairs of Lines and Angles.
GEOMETRY 3-1 Lines and Angles. Vocabulary Examples Identify each of the following. a. a pair of parallel segments b. a pair of skew segments d. a pair.
Section 3.1. Parallel Lines – coplanar lines that never intersect and have the same slope Parallel Lines – coplanar lines that never intersect and have.
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.
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Wednesday, September 5, 2012 BUT BUT Homework: p. 128 #16-33 mentally; writing Homework: p. 128 #16-33 mentally; writing.
Boyd/Usilton. Parallel and Skew Lines Parallel lines: coplanar lines that do not intersect. Skew lines: are noncoplanar, not parallel and do not intersect.
Relationships Between Lines Parallel Lines – two lines that are coplanar and do not intersect Skew Lines – two lines that are NOT coplanar and do not intersect.
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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.
Warm Up: 1.Using lined paper and a ruler trace over a set of parallel lines. Then, draw a line intersecting these lines as shown below. 2.Using a protractor,
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Note-taking Guide I suggest only taking writing down things in red If there is a diagram you should draw, it will be indicated.
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3.1 Lines and Angles Unit IC Day 1. Do Now Parallel lines have _________ slopes. ◦ Give an example of a line that is parallel to y = -3x + 7 Perpendicular.
3.1 Lines and Angles Relationships between lines Identify angles formed by a transversal.
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Parallel Lines & Transversals & Angles. Transversal Definition:. A line, ray, or segment that intersects 2 or more COPLANAR lines, rays, or segments.
Warm Up 1.) Name a line that contains C. 2.) Name a ray with endpoint B that contains A. 3.) Name an angle with vertex B that contains C. 4.) Name a segment.
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Lines and Angles Geometry Farris I can identify parallel, perpendicular and skew lines. I can identify the angles formed by two lines and a.
1 Angles and Parallel Lines. 2 Transversal Definition: A line that intersects two or more lines in a plane at different points is called a transversal.
Lesson 3-4 Proving lines parallel,. Postulates and Theorems Postulate 3-4 – If two lines in a plane are cut by a transversal so that corresponding angles.
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TODAY IN GEOMETRY… STATs to Ch. 2 Test Learning Goal: 3.1 Identify pairs of lines and angles formed by intersecting lines Independent Practice/Return.
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