Total number of acres = 2 + 5 + 3 + 11 + 9 = 30
The angle of acres = 2 + 5 + 3 + 11 + 9 = 30
The angle of the sector for cassava in a pie chart = 330×360∘=36∘\frac{3}{30} \times 360^{\circ} = 36^{\circ}303×360∘=36∘
