Question

in figure, m angle A is 85°, m angle D is 110°, find angle B and C​

Answer 1

Answer:

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Step-by-step explanation:

Given □ABCD is cyclic and ∠B=110 deg.

 

In a cyclic quadrilateral the sum of opposite angles=180 deg.

   

⇒∠A+∠C=180 deg.

 

⇒∠B+∠D=180 deg.

 

⇒110 deg.

+∠D=180 deg.

 

⇒∠D=180 deg.

−110 deg.

 

⇒∠D=70 deg.