Question

the length of a rectangular plot is twice its breath . if the perimeter of the plot is 240 m , find its area.

Answer 1

Answer:

$let \: the \: breadth \: be \: rectangular \: plot \: be \: = x \\ length = 2x \\ perimeter \: of \: rectangular \: plot = 2(l + b) \\ 240 = 2(x + 2x) \\ 240 = 2x + 4x \\ 240 = 6x \\ x = \frac{240}{6} \\ x = 40 \\ length = 2 \times 40 = 80 \\ breadth = 40$

Area=40×80=3200

Answer 2

Answer:

3200 cm

Step-by-step explanation:

Let the breadth be x

Length be =2x(twice of breadth)

Perimeter =240cm

P=2(l+b)

=2(2x+x)

=4x+2x

240=6x

X=240/6

X=40

Breadth =40 cm, length=2*40=80cm

Area of rectangle =l*b

Area =80*40

Area =3200 cm answer