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Answered by
0
Answer:
Option d
40°
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Answered by
1
Answer:
In ∆ABC ,
∆A = 70°
so, ∆B = ∆C = X°
Then, A+B+C = 180°
70°+X°X° = 180°
2X°= 180° -70°=110°
X°= 110/2= 55°
Hence,∆ABC = 55°
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