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

A design was made of straight edges of lengths 2.1 cm and arcs of circles of radii 2.1 cm as shown in the diagram below. What is the perimeter of the
design? (Take #pi=22/7#)
figperimeter19520201116.JPG
A. 36.12 cm
B. 34.8 cm
C. 26.4 cm
D. 21.6 cm

 (4m 38s)
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