the perimeter of a certain sector of a circle of radius 6.5cm is 21cm. find the area of the sector
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1
Answer:
26 cm²
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Answered by
1
Answer:
here perimeter of the sector is 21cm
but radius of 6.5 cm is given .
so from fig
we can calculate the arc AB
21-(6.5+6.5)=8cm
By formula area of sector
=1/2(radius*arcAB)
=1/2(6.5*8)
26 cm^2
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