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Chapter 3: Q7 (page 80)

State the postulate or theorem that justifies each statement.

∠6≅∠7

Short Answer

Expert verified

Vertically opposite angles are congruent.

Step by step solution

01

Step 1. First observation from figure

Arrowheads are shown on lines Iand P, so these lines are parallel

02

Step 2. Second observation from figure

Line tis transversal to the parallel lines IandP

03

Step 3. Third observation from figure

∠6and ∠7are vertically opposite angles.

As vertically opposite angles are congruent.

Thus,∠6≅∠7

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