given x is radii and o is centre find perimeter of 3/4 part of circle( highlight ed boundary)
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Circumference = 2×22/7×r
3/4 circumference = 2×3/4×22/7×x
= (33/7)x
Total = (33/7)x + x + x
=[(33+7+7)/7]x
=(47/7)x
3/4 circumference = 2×3/4×22/7×x
= (33/7)x
Total = (33/7)x + x + x
=[(33+7+7)/7]x
=(47/7)x
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