Respuesta :

Given:

The radius of the circle is 4 cm.

The central angle is 120°

We need to determine the area of the sector.

Area of the sector:

The area of the sector can be determined using the formula,

[tex]A=(\frac{\theta}{360} )\pi r^2[/tex]

Substituting [tex]\theta=120[/tex] and r = 4 cm, we get;

[tex]A=(\frac{120}{360}) \pi (4)^2[/tex]

Simplifying, we get;

[tex]A=(\frac{120}{360}) \pi (16)[/tex]

[tex]A=5.33 \pi \ cm^2[/tex]

Thus, the area of the sector is 5.33π cm²