Question

Find the area of a sector with a central angle of 120° and a diameter of 7.3 cm. Round to the nearest tenth.

Answer 1

Answer:$14cm^{2}$

Step-by-step explanation:

diameter=7.3cm

radius=$\frac{diameter}{2}$

          =$\frac{7.3}{2}$

          =3.65cm

angle =120°

area=$\frac{angle (tita)}{360}$ × $\frac{\pi r^{2} }{1}$

=$\frac{120}{360}$ × $\frac{22}{7}$ ×$3.65^{2}$

=$13.95cm^{2}$

≅$14cm^{2}$