Question

find the length of the arc which make 60 degree angle on the center and the radius of the center is 21cm
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Answer 1

Step-by-step explanation:

let x = 60°

r = 21 cm

Length of arc = ( x ÷ 360 ) ( 2πr )

length of arc = ( 60 ÷ 360 ) ( 2 × 22 ÷ 7 × 21 )

length of arc = 22 cm