If a copper wire is bend to make a square whose area is 324 cm2 If the same wire is bent to form a s...........

Quantitative Aptitude ( CCS) Mensuration 2D

If a copper wire is bend to make a square whose area is 324 cm². If the same wire is bent to form a semicircle, then find the radius of semicircle.

11 cm

12 cm

14 cm

25 cm

Area of square= 324, hence side =18
Perimeter = 4a =4*18=72
Circumference of semicircle= 2r+Pie *r
r(2+pie)=72
r=14 cm

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