Answer :

(i) True. All the points on the circle are at equal distances from the centre of the circle, and this equal distance is called as radius of the circle

(ii) False. There are infinite points on a circle. Therefore, we can draw infinite number of chords of given length. Hence, a circle has infinite number of equal chords

(iii) False. Consider three arcs of same length as AB, BC, and CA. It can be observed that for minor arc BDC, CAB is a major arc. Therefore, AB, BC, and CA are minor arcs of the circle

(iv) True. Let AB be a chord which is twice as long as its radius. It can be observed that in this situation, our chord will be passing through the centre of the circle.

Therefore, it will be the diameter of the circle

(v) False. Sector is the region between an arc and two radii joining the centre to the end points of the arc. For example, in the given figure, OAB is the sector of the circle

(vi) True. A circle is a two-dimensional figure and it can also be referred to as a plane figure

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