Math, asked by aulakhharsh064, 2 months ago

answer the question with step by step explanation

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Answered by kashishrajawat083

1

Answer:

in isosceles triangle ..AB=BC are given ..so angle corresponding to side are equal .

angle b= angle C

angle C=70°

now,

A+B+C=180 by angle sum property

70+70+A =180 A= 180-140=40 °

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