Question

Need this urgent..
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Answer 1

Answer:

considering the centre as O.

AOF= COD=90° (ver. opp. angles)

Since BE is a straight line,

BOC+COD+DOE=180°

40°+90°+5a=180°

5a= 180°-130°

5a= 50°

a=10°

HOPE THIS HELPS U.