Question

Diameter of a circular garden is 7.8cm .find its area​

Answer 1

Answer:

iven dia of pond =17.5m

Then r=17.5/2=8.75m

Now area of the pond =

=3.14x8.75^2=240.406m^2

Now area of pond including width of path

So first radius =8.75+3.5=12.25m

Area =3.15 x 12.25^2

=471.196m^2

Area of path = total area - area of pond

=471.196-240.406=230.79m^2

Appox=231m^2

Step-by-step explanation:

Answer 2

Answer:

15.21π sq cm or 47.783 sq cm

Step-by-step explanation:

given diameter of circular garden= 7.8 cm

we know that areas of circle= πD^2/4

= π(7.8)^2/4

=15.21π or 47.783 sq cm