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30 votes
Given: m || n and p is a transversal

Prove: mAngle2 = mAngle7

Horizontal and parallel lines m and n are cut by transversal p. On line m where it intersects line p, 4 angles are created. Labeled clockwise, from uppercase left, the angles are: 1, 2, 4, 3. On line n where it intersects line p, 4 angles are created. Labeled clockwise, from uppercase left, the angles are 5, 6, 8, 7.
What is the missing reason in the proof?

Statement Reason
1. m || n and p is a transversal 1. given
2. ∠2 ≅ ∠3 2. ver. ∠s theorem
3. m∠2 = m∠3 3. def. of congruent
4. ∠3 ≅ ∠7 4. corr. ∠s theorem
5. m∠3 = m∠7 5. def. of congruent
6. m∠2 = m∠7 6. ?
corresponding angles theorem
alternate interior angles theorem
transitive property
subtraction property

User Xenosoz
by
3.2k points

2 Answers

19 votes
19 votes

Answer:

C: Transitive Property

Explanation:

Edge 22

User Telenachos
by
3.1k points
15 votes
15 votes

Answer:

Transitive property

Explanation:

Given:

1. m || n and p is a transversal 1. given

2. ∠2 ≅ ∠3 2. ver. ∠s theorem

3. m∠2 = m∠3 3. def. of congruent

4. ∠3 ≅ ∠7 4. corr. ∠s theorem

5. m∠3 = m∠7 5. def. of congruent

6. m∠2 = m∠7 6. ?

Note:

Transitive property states that: If a = b and b = c, then a = c.

Solve:

2. ∠2 ≅ ∠3 ⇒ 2. ver. ∠s theorem

5. m∠3 = m∠7 ⇒ 5. def. of congruent

These statement to make use of the transitive property reason or proof.

∴ 6. m∠2 = m∠7 ⇒ 6. transitive property

Hence, the answer is Transitive property.

~Lenvy!~

User Dario Fiumicello
by
3.0k points