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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