if-the-circumference-of-a-circle-is-25cm-what-is-its-diameter
##”8 cm”##
Circumference of a circle is ##”25 cm”##
i.e.
##2pir=25##
##2 xx 22/7 xx r = 25##
##44/7 xx r = 25##
##r = 25 xx 7/44 = 3.97 ~~ “4 cm”##
Therefore,
##”diameter” = 2r = 2 xx “4 cm” = “8 cm”##
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