(a) A ball is packed in a cube with the edge length of 10 cm and it touches all the faces of the cube. What percentage of the cube is unoccupied? (b) Five identical balls fit exactly into a rectangular box of width 20 cm, as shown. Find the volume of the box. 20 cm

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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(a) A ball is packed in a cube with the edge length of 10 cm and it touches all the
faces of the cube. What percentage of the cube is unoccupied?
(b) Five identical balls fit exactly into a rectangular box of width 20 cm, as shown.
Find the volume of the box.
808
20 cm
Transcribed Image Text:(a) A ball is packed in a cube with the edge length of 10 cm and it touches all the faces of the cube. What percentage of the cube is unoccupied? (b) Five identical balls fit exactly into a rectangular box of width 20 cm, as shown. Find the volume of the box. 808 20 cm
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