Question

See the picture below!!!

Answer 1

See explanation

Explanation:

Write the coordinates of all vertices of cuboid:

• O(0,0,0)
• A(3,0,0)
• C(0,4,0)
• D(0,0,2)
• E(3,0,2)
• G(0,4,2)
• B(3,4,0)
• F(3,4,2)

The vector EG has coordinates (0-3,4-0,2-2)=(-3,4,0). The length of EG is

`√((-3)^2+4^2+0^2)=√(9+16)=√(25)=5`

The midpoint of EG has coordinates

`\left((3+0)/(2),(0+4)/(2),(2+2)/(2)\right)=(1.5,2,2)`