Answer:
The number of words per page.
Step-by-step explanation:
We're given the time per page. The book could have 10 words or it could have 1,000 words. We wouldn't know until given that information.
J
Valume= 13x(3.1415926536)x(5cm)^2 x (10cm)= 10210.18cm^3
SSS postulate because three sides of a triangle are are congruent