Question

A square of side 40 cm and a rectangle of length 50 cm has same perimeter which one has greater area.​

Answer 1

Side of square =s^2

=40^2

=1600cm^2

perimeter of square=4×s

=4×40

=160cm

so

perimeter of reactangle=2(l+b)

160 =2(50+b)

160/2 =50+b

80-50=b

b=30.

now,

area of ractangle=l×b

=50×30

=1500cm^2

hence area of square is greater

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