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Multiple Choice Questions (MCOs)19. A wire is in the form of a semicircle of 7 cm radius. The length of the wire will be(a) 25 cm(b) 36 cm(c) 5 cm(d) 39 cm29 omannd 66 cm resnectiely. Find the width betw |
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Answer» Perimeter of semicircular wire = pi × r Perimeter of semicircular wire = 22/7×7 cm = 22 Length of the diameter = 2r = 14 Total length = 22 cm + 14 cm = 36 cm |
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