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 Class 7 Mathematics Length, Perimeter and Area: Perimeter and Circumference

The figure below is made up of semi-circles joined by straight lines. What is the perimeter of the figure? (take #pi=22/7#)
figperimeter19520201140.JPG
A. 18 cm
B. 22 cm
C. 29 cm
D. 51 cm

 (3m 33s)
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