plss help it's urjent
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circumference of a semicircle=πr
=22/7×7
=22m
perimeter of a rectangle=2(l+b)
=2(20+14)
=2(34)
=68m
perimeter of a equilateral triangle=3a
=3(14)
=42m
perimeter of the diagram =22+68+42
=132m
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