Use what you know about the sums of the interior and exterior angles of triangles to determine of each identified angle . Plz and thxs

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter12: Angle Relationships And Transformations
Section12.1: Angle Relationships
Problem 17E
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Use what you know about the sums of the interior and exterior angles of triangles to determine of each identified angle . Plz and thxs
Find mZA and mZB.
A
143°
B
81
Transcribed Image Text:Find mZA and mZB. A 143° B 81
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