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Plz help, what is the value of b?

Plz help, what is the value of b?
asked 83.9k views
4 votes
Plz help, what is the value of b?

Plz help, what is the value of b?-example-1
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User Israel Unterman
by
8.7k points

1 Answer

4 votes

By HS Postulate, Triangle EFC = Triangle EDC.

Angle FEC = Angle DEC by CPCTC

2b = b + 7 (subsitutional)

2b - b = b + 7 - b (subtract)

b = 7 (combining like terms)

answered
User Yoriz
by
8.5k points
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