# Chapter 5 - Review Exercises - Page 262: 19

x=5 $\angle$F=97$^{\circ}$

#### Work Step by Step

$\angle$D=$\angle$A 2x+40=50 2x=10 x=5 $\angle$A+$\angle$E+$\angle$F=180 50+33+$\angle$F=180 $\angle$F=97

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