Question

please is ka answers de do please​

Answer 1

Answer:

hence the angle ABC + angle adc = 180

and adc is 120° so, 180-120 =60

so angle ABC =60°

IN ANGLE ABC

ANGLE BAC +ANGLE ACB ANGLE =180°

ANGLE BAC +90°+60° =180°

ANGLE BAC +150°=180°

SO , ANGLE BAC = 180°-150° = 30°

ANGLE BAC =30°