The perimeter of a square is equal to the radius of a circle having area 39424 sq cm. what is the area of square?
A1225 sq cm
B441 sq cm
C784 sq cm
DCan't say
A1225 sq cm
B441 sq cm
C784 sq cm
DCan't say
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The height of the cylinder is 2times the radius of base of cylinder.If the area of base of the cylinder is 154 cm2.Find the curved surface area of the cylinder?