Question

the area of circle is 2464 c,m find the diameter

Answer 1

Hii friend........
Area of circle = 2464cm^2
pir^2 = 2464
22/7×r^2 = 2464
r^2 = 2464×7/22
r^2 = 112×7
r^2 = 784cm
so,Radius = 28cm
Then,Diameter of a circle is 56cm
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Answer 2

pieR2 =  2464     R2  =   2464 *  7 / 22   ( cancel 2464 and 22)     R2 =  112 *   7     R   =  root 784     R =  28 cm
    2r = d    2 * 28    D = 56cm