Diameter of pizza = 18 inches
So radius = 18/2 = 9 inches
Now Area of Pizza = [tex] \pi r^{2}=\pi (9)^2= 81\pi [/tex]
Now it is cut into 10 slices
So Area of each slice = [tex] \frac{81\pi}{10} [/tex]
So each slice is [tex] \frac{81\pi}{10} [/tex] Inches^2
