Jtejucoviz
Answered

On a circle of radius 180 meters, find the length of an arc subtended by a central angle of 80 degrees?

Sagot :

Cheahjimmyviz
formula for length of arc of a circle =        S =  rθ   where θ is in radians
  S = length of arc;        r = radius    &  θ = angle in radians
               180⁰ =    π  radian
                   80⁰ =    π/180 * 80  =    4/9 π
THUS
               S =    rθ =    180* 4/9π  =  80π meter