Math, asked by neelamgupta8303, 9 months ago

Neha divides a circular disc of radius 4.2cm into two equal parts what is the perimeter of each semicircular disc

Answers

Answered by pspadiyar5
2

Answer:

perimeter of each circular disk is

pie*r + 2r

22/7 * 4.2 + 2*4.2

22*0.6 + 8.4

13.2 + 8.4

21.6

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