Question

a sector i cut from a circle of radious 21 cm. the angle of the sector is 150 degre. find the length of its arc and area​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

length of Arc=55cm

area of sector=577.5cm²

Step-by-step explanation:

r=21cm

theta =150

length of Arc =theta/360×2 Pi r

=150/360×2×22/7×21

=330/6

=55cm

area of sector =theta /360×pir²

=150/360×22/7×21×21

=3465/6

=577.5cm²