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kiruha [24]
3 years ago
11

Triangle DEF is an isosceles, so DEF = DFE.

Mathematics
2 answers:
Katarina [22]3 years ago
8 0

Answer:

m∠CFD=105\°

Step-by-step explanation:

we know that

m∠CFD+m∠DFE=180\° ------> by supplementary angles

we have

that

m∠DFE=m∠DEF=75\°

so

m∠CFD+75\°=180\°

m∠CFD=180\°-75\°=105\°

Ratling [72]3 years ago
4 0
I believe its 105 degrees
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