3.1 Identify Pairs of Lines and Angles

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Presentation transcript:

3.1 Identify Pairs of Lines and Angles

Transversal – a line that intersects two or more coplanar lines at different points.

Corresponding Angles (C) – have corresponding positions Corresponding Angles (C) – have corresponding positions. For example: label 2 and  6 t 2 6

F Corresponding Angles (C) What shape do corresponding angles make? t 2 F 6

Alternate Interior Angles (AI) – lie on alternate (opposite) sides of the transversal on the interior (inside/between) the two lines. For example: label  4 and 5 t 4 5

Z Alternate Interior Angles (AI) What shape do alternate interior angles make? t Z 4 5

Alternate Exterior Angles (AE) – lie on alternate (opposite) sides of the transversal and on the exterior (outside) of the two lines. For example: label 1 and 8 t 1 8

Not really Alternate Exterior Angles (AE) Do alternate exterior angles have a shape? Not really t 1 8

Same Side Interior Angles (SSI) – lie on the same side of the transversal and on the (inside) of the two lines. For example: label 3 and  5 t 3 5

C Same Side Interior Angles (SSI) What shape do Same Side Interior angles make? C t 3 5

Slanty T shape X shape Don’t forget!!! Vertical Angles (V) Linear Pair (LP) 3 4 1 2 Slanty T shape X shape

Determine if the angles are alternate interior, same-side interior, corresponding, vertical angles, linear pair or no relationship. 1. 4 and 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Same-Side Interior Highlight ange 4 and 7.

Determine if the angles are alternate interior, same-side interior, corresponding, vertical angles, linear pair or no relationship. 2. 6 and 9 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Alternate Interior Highlight ange 4 and 7.

Determine if the angles are alternate interior, same-side interior, corresponding, vertical angles, linear pair or no relationship. 3. 6 and 14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Highlight ange 4 and 7. Corresponding

Determine if the angles are alternate interior, same-side interior, corresponding, vertical angles, linear pair or no relationship. 4. 9 and 10 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Highlight ange 4 and 7. Linear Pair

Determine if the angles are alternate interior, same-side interior, corresponding, vertical angles, linear pair or no relationship. 5. 3 and 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 No Relationship Highlight ange 4 and 7.

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