Question

(1) A rectangle and a square have same area. The lengths of square and
rectangle are 40 cm and 80 cm respectively. Find the breadth of the
rectangle.​

Answer 1

Side of square=40cm

Area of square=sideXside

Area=40cmX40cm

Area=1600cm^2

Area of square =Area of rectangle

So,

Area of rectangle =1600cm^2

Area of rectangle=lXb

1600cm^2=80cmXb

1600cm^2/80=b

20cm=b

Answer:

b=20cm