Math, asked by mahalesaloni94, 1 month ago

find the lenght of an arc of a circle of radius r cm which substends an angle 0 degree at the centre of the circle ?​

Answers

Answered by anikethn
0

Answer:

Step-by-θ=30  

o

 and r=4cm

⇒  Length of an arc =  

360  

o

 

θ

(2πr)

Where, θ is angle subtended at a center.

            2πr is circumference of a circle.

⇒ Length of an arc =  

360  

o

 

30  

o

 

×2π×4

⇒ Length of an arc =  

12

2π×4

 

∴  Length of an arc =  

3

step explanation:

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