1.

11 Find the circumference of the circles with radius:a 7 cmb 3.5 cmс 14 cmd 21 cm

Answer»

Circumference of circle=2πrr is the radius herea) C=2π(7)cm=2(22/7)(7)=44cmb)C=2π(3.5)cm=2(22/7)(3.5)=22cmc) C=2π(14)cm=88cmd) C=2π(21)cm=110cm



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