Question

in triangle ABC , BC is produced to d if angle ACD is equal to 120 degree and angle ADC is 43 degree find angle BAC and angle ACB
ANS MY QUESTIONS ಠ﹏ಠ​

Answer 1

Answer:

From the figure we know that ∠ACB and ∠ACD form a linear pair of angles

So we get

∠ACB+∠ACD=180  

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By substituting the values

∠ACB+128  

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=180  

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On further calculation

∠ACB=180  

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−128  

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By subtraction

∠ACB=52  

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We know that the sum of all the angles in a triangle is 180  

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.

So we can write it as

∠ABC+∠ACB+∠BAC=180  

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By substituting the values

43  

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+52  

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+∠BAC=180  

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On further calculation

∠BAC180  

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−43  

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−52  

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By subtraction

∠BAC=180  

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−95  

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∠BAC=85  

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Therefore, ∠BAC=85  

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 and ∠ACB=52  

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.

Step-by-step explanation:

Answer 2

Triangle ABC has angle BAC equal to `90^(@).` What is the measure of the angle ABC? A. The angle ABC is `35^(@)` B. The angle CBA is `55^(@)`