Question 1

Give the reason this statement is true:  If <1 = < 7. then line n is parallel to line m.

Accepted Answer

If ALTERNATE EXTERIOR angles are CONGRUENT, lines are PARALLEL.

Answer

If CORRESPONDING angles are CONGRUENT, then lines are PARALLEL.

Answer

If ALTERNATE INTERIOR angles are CONGRUENT, then lines are PARALLEL.

Answer

If ALTERNATE EXTERIOR angles are SUPPLEMENTARY, lines are PARALLEL.

Question 2

Give the reason this statement is true:  If <13 = <11, then line m in parallel to line n.

Accepted Answer

If ALTERNATE INTERIOR angles are CONGRUENT, then lines are PARALLEL.

Answer

If ALTERNATE INTERIOR angles are SUPPLEMENTARY, then lines are PARALLEL.

Answer

If CORRESPONDING angles are CONGRUENT, then lines are PARALLEL.

Answer

If ALTERNATE EXTERIOR angles are CONGRUENT, then lines are PARALLEL.

Question 3

Give the reason this statement is true:  If < 6 = <14, then line a is parallel to line b.

Accepted Answer

If CORRESPONDING angles are CONGRUENT, then lines are PARALLEL.

Answer

If CORRESPONDING angles are PARALLEL, then lines are CONGRUENT.

Answer

If ALTERNATE EXTERIOR angles are CONGRUENT, then lines are PARALLEL.

Answer

If CORRESPONDING angles are SUPPLEMENTARY, then lines are PARALLEL.

Question 4

Give the reason this statement is true:  If <3 + <12 = 180, then line a is parallel to line b.

Accepted Answer

If SAME-SIDE INTERIOR angles are SUPPLEMENTARY, then lines are PARALLEL.

Answer

If SAME-SIDE INTERIOR angles are CONGRUENT, then lines are PARALLEL.

Answer

If SAME-SIDE EXTERIOR angles are SUPPLEMENTARY, then lines are PARALLEL.

Answer

If SAME-SIDE INTERIOR angles are PARALLEL, then lines are SUPPLEMENTARY.

Question 5

If <15 + <9 = 180, which lines are parallel?

Accepted Answer

line s is parallel to line t

Answer

line m is parallel to line n

Answer

line m is parallel to line t

Answer

line n is parallel to line p

Question 6

If <15 = <17, which lines are parallel?

Accepted Answer

line n is parallel to line p

Answer

line m is parallel to line p

Answer

line s is parallel to line t

Answer

line n is parallel to line m

Question 7

If <7 = <14, which lines are parallel?

Accepted Answer

line t is parallel to line s

Answer

line m is parallel to line p

Answer

line n is parallel to line p

Answer

line m is parallel to line n

Question 8

If <21 = <18, which lines are parallel?

Accepted Answer

line n is parallel to line p

Answer

line s is parallel to line p

Answer

line m is parallel to line p

Answer

line n is parallel to line m

Question 9

If <19 = <2, which lines are parallel?

Accepted Answer

line s is parallel to line t

Answer

line m is parallel to line n

Answer

line m is parallel to line p

Answer

line n is parallel to line p

Question 10

If <14 = <23, which lines are parallel?

Accepted Answer

line m is parallel to line p

Answer

line n is parallel to line p

Answer

line m is parallel to line n

Answer

line s is parallel to line t

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