Joseph is building a cone using modeling clay. The cone has a radius of 7 cm and a height of 12.5 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 round the answer to two decimal places.

Question

Joseph is building a cone using modeling clay. The cone has a radius of 7 cm and a height of 12.5 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 round the answer to two decimal places.

anonymous · Answer

@welshfella

anonymous · Answer

@AlexandervonHumboldt2

welshfella · Answer

volume of a cone = (1/3) pi r^2 h

anonymous · Answer

my answer i got at the end was 282.08

welshfella · Answer

the added amount of clay  equals the difference in valume of the large cone and the smaller one

welshfella · Answer

sorry gotta go r ight now