Question

A brand new filled jar of jam is 10 cm tall and has a radius of 5 cm. Ann's family eats some of the jam one weekend and now the jam in the jar is 4 cm high. Approximately how much jam did Ann's family eat? Round your final answer to the nearest whole number. 

Answers A 150  B 314  C471  D785

Answer 1

471 cm3

Explanation:

Here is why *^^*

Answer 2

Volume = π • r² • height
Volume = PI * 5^2 * 10

Volume = 785.4 cm^3

Volume = PI * 5^2 * 4

Volume = 314.2 cm^3

Jam consumed = 785.4 cm^3 -314.2 cm^3
Jam consumed = 471.2 cm^3
answer is C