Respuesta :

Answer:

Step-by-step explanation:

Area of the TOTAL circle (360°)    =

   pi r^2 =

    pi * 4.5 ^2 = 20.25 pi    units^2

you only want 40 ° of this 360 ° total

           40 / 360   * 20.25 pi = 2.25 pi   units^2