Posts tagged 'sector'
G.122 sector of a circle
A:term:**sector of a circle** <sector-of-circle> is the:term:figure <G.9> which, when an:term:angle <G.22> is constructed at the:term:center <center> of the:term:circle <G.10>, is contained by the:term:segments <G.4> containing the angle and the arc cut off by them.
G.123 inscribed angle theorem
In a circle, the angle at the center is double the angle at the circumference when the angles have the same arc as base.