Question

the perimeter of the sector of a circle of radius 5.2 can is 16.4cm. find the area of the sector ​

Answer 1

Answer:

First we have to use formula for circle

and given solution

Answer 2

Step-by-step explanation:

let OAB be the given sector

then the perimeter of sector OAB =16.4cm

OA+OB+AB = 16.4

5.2+5.2+AB = 16.4

AB ( length)

AB ( Length ) 16.4 -10.4

l=6cm

now

0= L/R × 180/π

area of sector = 0/ 360 ×πr^

1/2 ( 0/180× πr) r= 1/2 ×l×r

1/2× 6×5.2 = 6×2.6

= 15.6cm^