Question

a wire 121 cm long is bent so as to lie along the arc of a circle of 180 cm radius. the angle is subtended at the centre of the arc in degree​

Answer 1

Answer:

38.53 degrees

Step-by-step explanation:

Total length of wire = 121cm

Radius.                     = 180cm

We know that length of arc = radius × angle substented in radians

Therefore,  

121.=.180× angle in radians

Angle=  

180

121

​  

 

Angle in radians= 0.6722

Angle in degrees =  

3.14

(angleinradians×180)

​  

 

                             =  

3.14

121

​  

 

                              =38.53 degrees

Hence angle substented is 38.53 degrees

Answer 2

Answer:

38°30'

this is what was written in goole

srry if this is wrong

idj