GRE Exam Numerical Ability Area and Volume

a steel wire bent in the form of a square of area 121 cm square. if the same wire is bent in the form of a circle, what is the area of the circle?

Read Solution (Total 2)

area of sq 121 so length 11
so perimeter will b 44
hence circumference ogf the circle=44
2*22/7*r=44
so r=7
area of circle will be 154 cm sq
11 years agoHelpfull: Yes(5) No(0)

area of square,a^2=121
so a=11 cm
length of wire=perimeter of circle=44 cm
Hence, 2*3.14*r=44
So radius,r=7
Area of circle=3.14*7*7=154.06 cm square.
11 years agoHelpfull: Yes(1) No(0)

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