Math, asked by piyush793, 1 year ago

CE parallel BA if angle BAC equal to 60 degree and Angle is equal to 65 degree then the measure of angle abc is

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Answered by ShreyaPandey21
5
THE ANSWER IS IN THE ATTACHMENT...
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Answered by Mercidez
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 \: \: \: \: \: \: \: \: \: \: \: \: Your \: \: \: \: \: Answer \\ - - - - - - - - - - - - -

CE || BA \: \: \: and \: \: \: AC \: \: \: is \: \: \: a \: \: transversal \\

∠ ACE = \:∠ BAC = 60 ° (alternate \: \: angles)

 ∠ ACD = ∠ ACE\: \: + \: \: \: ∠ ECD \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \: \: \: \: \: \: \: \: \: \: \: \: \: = 60 ° \: \: + 65 ° \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: = 125 °

Now

 ∠ ACB \: \: + < ACD = 180° \: \: (linear \: \: pair) \\

 = > \: \: \: ∠ ACB \: \: + 125° \: = 180° \\ \\ = > \: \: \: ∠ACB \: = 180° - 125° \\ \\ = > \: \: \:∠ ACB = 55°

Hence, \: \: ∠ ACB = 55 °
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