A line to create a sector from the centre of a circle is a
- radius.
- diameter.
- chord.
Explanation from PART66Online
A line drawn from the centre of a circle out to the circumference is a radius, and a pair of radii with the arc between them bounds a sector. A diameter passes right across through the centre, and a chord joins two edge points without touching the centre, so neither starts at the centre as required. A chord and its arc bound a segment, not a sector.
kstratos asked · 29 Mar 2019
helpppp
Community Comments (1)
Radius: A circle’s radius — the distance from its center to a point on the circle — tells you the circle’s size. In addition to being a measure of distance, a radius is also a segment that goes from a circle’s center to a point on the circle.
Chord: A segment that connects two points on a circle is called a chord.
Diameter: A chord that passes through a circle’s center is a diameter of the circle. A circle’s diameter is twice as long as its radius.
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