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09-07-2017
Mathematics

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Given that line YA is the angle bisector of angle ZYB, find AZ.

Given that line YA is the angle bisector of angle ZYB find AZ class=

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Аноним Аноним

09-07-2017

ZA = BA because triangles ZYA and BYA are congruent by AAS.

so 5z - 7 = 2z + 5

3z = 12

z = 4

so AZ = 5(4) - 7 = 13

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