what major and minor sector

Two points lying on a circle actually define two arcs. The shortest is called the 'minor arc' the longer one is called the 'major arc'. In the figure above, if you were to refer to the 'arc AB' you could mean either one. Typically, if you don't specify which, readers will assume you mean the minor (shortest) arc. If there is a possibility of confusion, you should state which one you mean.

Another way to avoid confusion is to have another point on the arc and use all three to define it. For example 'arc AQB', would not be in doubt since the point Q would lie on only on one of the two possible arcs.

When the major and minor arcs are the same length, they divide the circle into two semicircular arcs.SeeSemicircle definition. Under these circumstances neither arc is considered to be the major or minor arc.

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this means that suppose you have made an sector in a circle the sector you made is minor sector and remaining part of circle will be major sector.

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