DWilson1234
31.03.2020 •
Mathematics
The sum of this geometric series
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Ответ:
Ответ:
StatementReason
AB and BC are congruent
CPCTC
DB and FB are congruent
CPCTC
Angle EBD congruent to angle EFB
CPCTC
Angle ABD congruent to angle EBD
Alternate angle theorem
Angle FBC congruent to angle EFB
Alternate angle theorem
ABD CBF
SAS theorem