in circle of radius 21cm, an arc subtends an angle of 60° at the centre.find the length of the arc
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22 cm is the length of the arc
Radius= 21 cm
Angle= 60 degree.
Length of the arc= x
formula for finding arc= theta/360 * circumference of the circle( 2πr )
x (arc)=60/360 * 2* 22/7 * 21.
1/6 * 2 * 22/7 * 21
1/3*22*3 = 22 cm is the answer.
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Answer:
22 cm is the Answer
Step-by-step explanation:
22 cm
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