A spinner of radius 7.5cm is divided into b equal sector . Find the area of each of the sector
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Circle is divided is to six sectors.
considers △AOB, It is an equilateral △
⇒AB=aunits.
∥ly,BC=CD=DE=EF=AF=a
An equilateral △ is formed each sector
outside the circle.
∴ Area of resultant fig =6×Areaofequ.s
=6×
4
3
a
2
=3
3
a
2
sq.units
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