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

The figure below represents a plot of land bounded by three straight edges and a semi-circle. Three strands of wire are used to fence the plot.
figperimeter19520201207.JPG
What is the length in metres of the wire used? (Take #pi=22/7#)
A. 660
B. 1980
C. 2640
D. 24420

 (3m 11s)
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