+0  
 
0
335
6
avatar

Donatello starts with a marble cube of side length 1. He then slices a pyramid off each corner, so that in the resulting polyhedron, all the edges have the same side length s. Find s. 

 Oct 2, 2021
 #1
avatar
0

The side length is $s = \frac{\sqrt{2}}{2}$

 Oct 2, 2021
 #2
avatar
0

Wrong

Guest Oct 2, 2021
 #3
avatar+36915 
+1

1 - sqrt 2  

 Oct 2, 2021
 #4
avatar
0

Wrong

Guest Oct 2, 2021
 #5
avatar+36915 
+1

Sorry....I typed it backwards after working it out on paper

    sqrt (2)  - 1

ElectricPavlov  Oct 2, 2021
 #6
avatar
0

s + 2(sin45º * s) = 1

 

s = 0.414213562       or  √2 - 1

 Oct 2, 2021

3 Online Users

avatar