Respuesta :

Answer:

Area =  254.34 square centimeters

Circumference =  56.52 centimeters

Step-by-step explanation:

We will use the formula for area and circumference of a circle to solve this.

Area = [tex]\pi r^2[/tex]

Where π is the constant taken as 3.14

r is the radius, given as 9 cm

Let's substitute and find the area:

[tex]A=\pi r^2\\A=(3.14)(9)^2\\A=254.34[/tex]

Area = 254.34 square centimeters

Now, the formula for circumference is:

Circumference = [tex]2\pi r[/tex]

Where π is the constant taken as 3.14

r is the radius, given as 9 cm

Substituting, we find the answer to be:

Circumference = [tex]2\pi r = 2 (3.14)(9) = 56.52[/tex]

Thus,

Circumference = 56.52 centimeters