pls solve this practice set
i will mark u brainlist pls
its very urgent
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pls solve this practice set
i will mark u brainlist pls
its very urgent
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(1)
(i)
diameter =2×7cm=14cm
circumference=2π×7
2×22/7×7
2×22
=44cm
(ii)
Radius=28cm/2=14cm
Circumference=2×π×14
2×22/7×14
2×22×2
=88cm
(iii)
Circumference =2πr
616cm=2×22/7×r
616=44/7×r
616/44=r/7
44r=616×7
44r=4312
r=4312/44
r=98cm
Diameter =2×R
2×98
=196cm
(2)
2πr=176
2×22/7×r=176
44r=176×7
44r=1232
r=1232/44
r=28cm
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