Question

in cyclic quadrilateral ABCD, angle A-angle C = 20. then find angle A​

Answer 1

Answer:

Step-by-step explanation:

a=180-20

= 160

Answer 2

16

۰۪۫S۪۫۰۰۪۫T۪۫۰۰۪۫E۪۫۰۰۪۫P۪۫۰ ۰۪۫B۪۫۰۰۪۫Y۪۫۰ ۰۪۫S۪۫۰۰۪۫T۪۫۰۰۪۫E۪۫۰۰۪۫P۪۫۰ ۰۪۫E۪۫۰۰۪۫X۪۫۰۰۪۫P۪۫۰۰۪۫L۪۫۰۰۪۫A۪۫۰۰۪۫N۪۫۰۰۪۫A۪۫۰۰۪۫T۪۫۰۰۪۫I۪۫۰۰۪۫O۪۫۰۰۪۫N۪۫۰

For cyclic quadrilateral ABCD

angle A- angle c = 20

TO FIND :- A

A quadrilateral ABCD is cyclic only if its opposite angles are SUPPLEMENTARY

Now A and C are oppsite angles

therefore,

angle A + angle c=180°

angle C=20° (GIVEN)

angle A +20°=180°

angle A= 180°-20°= 160°

۰۪۫y۪۫۰۰۪۫o۪۫۰۰۪۫u۪۫۰۰۪۫r۪۫۰ ۰۪۫a۪۫۰۰۪۫n۪۫۰۰۪۫s۪۫۰ ۰۪۫i۪۫۰۰۪۫s۪۫۰ 160°

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