Question

In triangle DEF , DE=DF. If D = 70°, find F

Answer 1

Answer:

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Answer 2

Answer:

Step-by-step explanation:

sum of interiror angles in a triamgle is 180

as de= df

/_def=/_dfe( equal sides subtend equal angles on a triangles)

so,

70 +x+x=180

2x=110

x=55deg

so def =55,dfe =55

hope this helps

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