(i) True : Because it is a one dimensional figure
(ii) True : Since, line segment joining the centre to any point on the circle is a radius of the circle
(iii) True : Because each arc measures equal
(iv) False : Since, a circle has only infinite number of equal chords
(v) True : Because, radius equal to times of its diameter
(vi) True : Yes, sector is the region between the chord and its corresponding arc
(vii) False : The degree measure of an arc is half of the central angle containing the arc
(viii) True : Yes, The degree measure of a semi-circle is 180°