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Core Connections Integrated III, 2015

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Core Connections Integrated III, 2015 View details

2. Section 7.2

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Exercise 57 Page 341

The markings mean that the two marked angles are congruent.

B

Practice makes perfect

Examining the diagram, we see that the two marked angles are congruent.

This means that their measures have to be the same. 4x+2^(∘) = 9x-3^(∘) Therefore, answer B is correct.

Subchapter links

7.2.1 Determining Missing Parts of Triangles p.341-342

7.2.2 Law of Sines p.345-346

7.2.3 Law of Cosines p.349-350

7.2.4 The Ambiguous Case p.354-356

7.2.5 Choosing a Tool p.359-362