Question

Find the length of an arc of a circle of radians 3 cm, if the angle subtended at the entre is 30degree (pi=3.14)

Answer 1

Answer:Explanation:

The formula for the length of an arc of a circle is:

l

=

θ

360

o

(

2

π

r

)

Where:

θ

is the angle subtended at the centre.

2

π

r

is the circumference of the circle.

the circumference

2

π

r

=

(

2

)

⋅

(

3.14

)

⋅

(

10

)

=

62.8

c

m

So, length of arc

l

=

θ

360

o

⋅

(

2

π

r

)

l

=

30

360

o

⋅

(

62.8

)

l

=

62.8

12

l

≈

5.23

c

m

Step-by-step explanation: hope this helps u plz mark me as the brainliest