Joseph is building a cone using modeling clay. The cone has a radius of 6 cm and a height of 12 cm. Joseph adds additional clay,

Question

3 years ago

14

Joseph is building a cone using modeling clay. The cone has a radius of 6 cm and a height of 12 cm. Joseph adds additional clay,

keeping the radius the same, until the cone reaches a height of 18 cm.
How much clay did Joseph add?
Use 3.14 to approximate pi and express your final answer in hundredths.

cm3

Mathematics

2 answers:

irinina [24] · Answer 1 · 2022-01-20T00:02:22+03:00

irinina [24]3 years ago

4 0

They used 8 cm of clay

dmitriy555 [2] · Answer 2 · 2022-01-19T21:34:59+03:00

Cone Volume = (π • r² • h) ÷ 3

Original cone = (3.14 * 6^2 * 12) / 3

Original cone = 452.16 cc

Larger cone = (3.14 * 6^2 * 18) / 3 = 678.24 cc

Difference = (678.24 -452.16) = 226.08 cc