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A piece of wire 22cm long …

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A piece of wire 22cm long is bent into the form of an arc of a circle subtending an angle of 60 degree at its center . Find its radius
  • 1 answers

Gaurav Seth 5 years, 8 months ago

Given,

Length of wire = 20cm

Angle formed = 60°

We know,

Length =  * 2 π r

where,

x is the angle formed

r is the radius and

Substituting the values ,

20 =  * 2 * π * r

20 =  * 2 * π * r

π * r = ( 20 * 6 ) / 2

π r = 120 / 2

π r =  60

r = 

Hence,

Radius of circle = 

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