perimeter of sector of a circle area 64π square cm is 56 cmd find the area of sector
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area of circle=64pie
pie r^2=64 pie
r^2=64
r=8 cm
so perimeter of sector=2r*Lenght of arc
56=2*8*L
56/16=L
L=7/2
so area of sector=1/2*l*r
=1/2*7/2*8
=14cm^2
pie r^2=64 pie
r^2=64
r=8 cm
so perimeter of sector=2r*Lenght of arc
56=2*8*L
56/16=L
L=7/2
so area of sector=1/2*l*r
=1/2*7/2*8
=14cm^2
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