Question

a steel wire forms a square whose area is 121cm2 if the same wire is left in the form of Recantangle , whose breadth is 8 cm, then length of Recantangle is?​

Answer 1

Answer:

area of square =121 cm2

l2=121cm2

l=11cm

perimeter 4l=4×11=44cm

if it form rectangle with breath b=8cm

let length of the rectangle= L

Now perimeter 2(L+b) =44cm

2L=44-2b=44-2×8=44-16=26

L=13cm