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Hi there! Have questions about your homework? At Brainly, there are 60 million students who want to help each other learn. Questions are usually answered in less than 10 minutes. Try it for yourself by posting a question! :D

If u extend the line to CD,you'll get a 90 degree (corresponding angles) made by the transversal line l .A perpendicular line from the center to a chord,bisects the chord . Therefore,it also bisects CD

From the above diagram if we extent the line l the the line will bisects the CD chord then the line will acts the transversal line to that to chords then the angles are corresponding .the corresponding angles are equal so the angle is 90 so l is bisects CD.