miki2002
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I have time until Friday, December 1. Please help me!! I’m really confuse with problem. Question is “Find the measure of the angle marked «X» ” Thank u in advance!!!!!

I have time until Friday December 1 Please help me Im really confuse with problem Question is Find the measure of the angle marked X Thank u in advance class=

Respuesta :

AnimeBrainly
ΔBDA should = 180°
∠D + 60 + 50 = 180
∠D + 110 = 180
∠D + 110 (-110) = 180 (-110)
∠D = 70
Due to vertical angles (theorem?), the ∠FDE is also 70°

to find ∠DFE, find ∠BDF
∠BDF = 180 - 70 (this 70 is from ∠D)
∠BDF = 110

∠BFD = 180 - 110 - 20
∠BFD = 50


∠D = 70

ΔFDE = x + 70 + ∠F

ΔAD'E = 180
∠D' = 70

∠DFC = 110
angle bisector states that it makes two equal angles
110/2 = 55
∠DFE= 55

180 - 70 - 55 =
180 - 125 = 
55
x = 55°

I'm hoping that this is right
& hope this helps

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