parallel lines: lines that do ______ intersect

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transversal: a line that

__________________

two or more lines

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CORRESPONDING angles:

are __________________

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ALTERNATE EXTERIOR angles:

are __________________

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ALTERNATE INTERIOR angles:

are __________________

PARALLEL LINES

AND TRANSVERSALS

EX 2: Use the figure to find the measures.

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• ∠1 and 63° are _____________________ angles.

This means they are ________________.

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∠1 = _______

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• ∠1 and ∠2 are _____________________ angles.

This means they _________.

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∠2 = _______

EX 1: Use the figure to find the measures.

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• ∠1 and 110° are ___________________ angles.

This means they are _________________.

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∠1 = _______

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• ∠1 and ∠2 are __________________ angles.

This means they _________.

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∠2 = _______

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EX 3: Use the figure to find the measures of all numbered angles.

REASONING

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∠1 = _______ ____________________

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∠2 = _______ ____________________

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∠3 = _______ ____________________

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∠4= _______ ____________________

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∠5= _______ ____________________

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∠6 = _______ ____________________

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∠7 = _______ ____________________