The diameter of a circle is 9 cm. What is the area of the circle? Use 3.14 for Pi

The area of a circle is the product of pi and the square of its radius. It is expressed as:

Area = pi x r^2 where r = d/2

We calculate as follows:

Area = pi x r^2

Area = pi x (d/2) ^2

Area = pi x (d^2 / 4)

Area = 3.14 x (9^2 / 4)

Area = 63.59 cm^2

Hope this answers the question. Have a nice day.

the area of the circle:

r = 9/2

so:

S = r ² * Pi = (9/2) ² * 3.14 = 63.58 cm²