What is the area of a circle with a diameter of 13.2 cm?

Use 3.14 for pi and round your final answer to the nearest hundredth.

Respuesta :

Answer:

The area of the circle is 136.78 cm².

Step by step explanation:

The area of a circle is

[tex]A=\pi r^2[/tex]                     ....(1)

Where, r is the radius of the circle.

The diameter is two of is radius.

[tex]d=2r[/tex]

It is given that the diameter of circle is 13.2 cm.

[tex]13.2=2r[/tex]

[tex]r=\frac{13.2}{2}=6.6[/tex]

Substitute r=6.6 and π=3.14 in equation (1).

[tex]A=3.14\times (6.6)^2[/tex]

[tex]A=136.7784[/tex]

[tex]A=136.78[/tex]

Therefore the area of the circle is 136.78 cm².