Question

area of the sector of the circle with central angle 120 degree in 3 pie cm2 find radius of the circle.​

Answer 1

given angle is 120 and area is 3π

we know area of a sector is

Area = π r² (C/360)

=> 3π=π * r² *(120/360)

=>r²=9

so r will be 3

so the length of arc is 3cm

Answer 2

Answer:

The area of the sector with a central angle and radius value is given by :

360

n

πr

2

=

360

120

×π×10

2

= 30πcm

2