Question

each side of a square field is 2m 80cm wide all around it. Find the area of the enlarged flower bed and also the increse in the area of the flower bed​

Answer 1

Answer:

ENLARGED AREA = 38400$cm^{2}$

Step-by-step explanation:

Question seems incomplete bro!

so, square field is there with flowers,

we increase the area.

Now let's find what' asked!

Question: Side of square is 2 m = 200 cm

Width of flower bed= 80 cm.

Now,

$ar(flower\;bed)=ar(whole \;square+flower\;bed)-ar(square)$

Let's figure out each of them-

AREA OF SQUARE + FLOWER BED

$side=200+80=280cm\\ar=(side)^{2}=280^{2}=78400cm^{2}$

Now,

AREA OF SQUARE:

$= side^{2}=200^{2}=40000cm^{2}$

Subtracting both, we will get the area of flower bed (enlarged) or the increase in area of  flower bed

$=78400-40000=38400cm^{2}$

Now,

%age increase in area

$\\ \\ =\frac{new\;area}{actual\;area}\times100=\frac{78400cm^{2}}{40000cm^{2}}\times100=198$%

=198%

$Learning\;\;Together\;:)$