Question

abcd is a cyclic quadrilateral . if angle bcd = 110 degree, find the value of angle a

Answer 1

Answer:

Step-by-step explanation:

Given □ABCD is cyclic and ∠B=110  

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In a cyclic quadrilateral the sum of opposite angles=180  

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⇒∠A+∠C=180  

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⇒∠B+∠D=180  

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⇒110  

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+∠D=180  

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⇒∠D=180  

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−110  

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⇒∠D=70  

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