1.

In a circle of diameter 56 cm, an arc subtends an angle of 60° at the centre, then what will be the length of arc.

Answer»

Answer:

Step-by-step EXPLANATION:

DIAMETER of circle = 42cm

angle substracted by arc = 60 degree = pie /3

now , d = arc/radius (length )

so , pie / 3 = length of arc / 21cm

pie/3 * 21 = length of arc

[ 3 WOULD CUT 21 BY 7]

= length of arc is 7 pie CM [ ANSWER]



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