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Sagot :
Answer:
E=99
F=72
D=90
Step-by-step explanation:
99 and e are vertical angles, so they are congruent. So now, you have 99+99+f+d=360.
[tex]99+99+f+d=360.\\198+f+d=360[/tex]
D is a right angle, so add 90 degrees to your answer and solve from there.
[tex]198+90+f=360\\288+f=360\\f=72[/tex]
99, 99, 90, and 72 should be the answers.
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