9. A pizza that has radius “z” and height “a”
has volume Pi*z*z*a.
Since the area of a cylinder is πR²h, and in this case the
height=a and radius=z. Putting this in the formula, we get
Volume = Pi*z*z*a !
10. The word hundred is derived
from the word “hundrath”,
which actually means 120
not 100.
