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cuboid face and body diagonale

problem: cuboid face and body diagonale


cuboid (20 cm x 50 cm x 90 cm). Find the face and body diagonale!

 

answer: cuboid face and body diagonale


1. step: given/wanted

leg 1: 20 cm

leg 2: 50 cm

leg 3: 90 cm

wanted: face and body diagonale

 

2. step: calculate

face diagonale 1  = √(leg 1² + leg 2²)

face diagonale 1 = √(20² + 50²)

face diagonale 1  = 53.85 cm

 

face diagonale 2  = √(leg 1² + leg 3²)

face diagonale 2 = √(20² + 90²)

face diagonale 2  = 92.20 cm

 

face diagonale 3  = √(leg 2² + leg 3²)

face diagonale 3 = √(50² + 90²)

face diagonale 3  = 102.96 cm

  

body diagonale  = √(leg 1² + leg 2² + leg 3²)

body diagonale  = √(20² + 50² + 90²)

body diagonale = 104.88 cm