santiago172005
02.09.2021 •
Mathematics
ABCD is a square
BEC and DCF are equilateral triangles
a) prove that triangle ECD is congruent to triangle BCF
G is the point such that BEGF is a parallelogram.
b) Prove that ED = EG
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Ответ:
i know that b should be 70 degress
Step-by-step explanation: