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In fig, AC = BC and ∠ACY = 140. Find X and Y:



  • a)
    95and 150

  • b)
    110 and 110

  • c)
    50 and 120

  • d)
    80∘ and 80

Correct answer is option 'B'. Can you explain this answer?
Verified Answer
In fig, AC = BC and∠ACY = 140. Find X and Y:a)95 and 150b)110and 1...
∠ACB = 40ο
as ABC is a isoceles trinagle
so ∠BAC = ∠ABC = a
a + a + 40 = 180ο
2a = 140ο 
a = 70ο
x + a =180ο   and  y +a = 180ο
x = 110ο  and y = 110ο
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Most Upvoted Answer
In fig, AC = BC and∠ACY = 140. Find X and Y:a)95 and 150b)110and 1...
Answer is b because exterior angle =sum of opposite 2 interior angles. angle ZAB and CAB are linear pair , XBA and CBA are linear pair
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In fig, AC = BC and∠ACY = 140. Find X and Y:a)95 and 150b)110and 110c)50and 120d)80and 80Correct answer is option 'B'. Can you explain this answer?
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