Question

a particle moves in a circle with o as centre and OA=OB=4 cm as the radius. its starts from A then the distance covered by particle is

Answer 1

Answer:

25.13cm

Explanation:

Distance covered = circumference of circle.

C=2 pi r

= 2 * 22/7 * 4

= 8 * 22/7

=25.13cm

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Answer 2

Distance covered = Perimeter of circle.

C= 2*pi*r

   = 2 * 22/7 * 4  cm

   = 8 * 22/7  cm

   =25.13 cm