question FIND X AND Y
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Question :
Find X and Y from the figure.
Solution :
From the attachment, we can see :
In ΔABC, ∠BAC = 50° and ∠ABC = 70° [Given]
⇒ ∠ABC + ∠ACB + ∠BAC = 180°
⇒ 70° + ∠x + 50° = 180°
⇒ ∠x + 120° = 180°
⇒ ∠x = 180° - 120°
⇒ ∠x = 60°
Now,
⇒ ∠BCD = 180°
⇒ ∠ACB + ∠ACD = 180°
⇒ 60° + ∠ACD = 180°
⇒ ∠ACD = 180° - 60°
⇒ ∠ACD = 120°
Now in ΔACD, ∠ADC = 36° and ∠ACD = 120°
⇒ ∠ACD + ∠ADC + ∠CAD = 180°
⇒ 120° + 36° + ∠y = 180°
⇒ ∠y + 156° = 180°
⇒ ∠y = 180° - 156°
⇒ ∠y = 24°
Therefore,
Required value of X and Y are 60° and 24° respectively.
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Answer:
value of x and Y are 60° and 24°
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