Math, asked by mr8055, 11 months ago

The perimeter of a sector of the circle of area 25 pi square is 20cm find the area of sector

Answers

Answered by swaraj3013

4

Area of the circle= 2*pi*r= 25*pi

r=25/2 cm

Perimeter of the sector = 2*l/r=20

2*l/(25/2)=20

l=125cm

Area = r*l*/2

(25/2*125)/2=3125/4=781.25cm ^2

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