A hollow crystal ball is made of glass that is 3 centimeters thick. The ball has a radius to the outside surface of 8 centimeters. What is the approximate volume of glass used t…

Question

asked Nov 3, 2019 126k views

1 Answer

Charan Ghate · Answer 1 · 2019-11-09T18:28:13+0000

Answer:

The approximate volume of glass is equal to
$1,620.24\ cm^(3)$

Explanation:

we know that

The volume of the sphere ( crystal ball) is equal to

$V=(4)/(3)\pi r^(3)$

the approximate volume of glass is equal to

$V=(4)/(3)\pi (rb^(3)-ra^(3))$

$rb=8\ cm$

$ra=(8-3)=5\ cm$

substitute

$V=(4)/(3)(3.14)(8^(3)-5^(3))=1,620.24\ cm^(3)$