Chapter 5: Circles
Determine the circumference, area of a circle, length of arc, area of a sector and other related measurements
Verify and explain that (i) diameter of a circle is an axis of symmetry of the circle; (ii) a radius that is perpendicular to a chord bisects the chord and vice versa; (iii) perpendicular bisectors of two chords intersect at the centre; (iv) chords that are equal in length produce arcs of the same length and vice versa; and (v) chords that are equal in length are equidistant from the centre of the circle and vice versa
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