Question

0 is the center of the circle. If angle acb is 30 degree then find angle abc

Answer 1

DUE TO ANGLE IN SEMI CIRCE IS 90
ANGLE BAC=90DEGRE

DUE TO ANGLE SUM PROPERTY OF TRIANGLE
IN TRIANGLE ABC
ANGLE A+ANGLE B+ANGLE C=180
90+ANGLE B+30=180
ANGLE B=180-120=60
ANGLE ABC =60degree


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