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Special Properties, SMB-005 MC

`A`, `B` and `C` are vertices on the cube below.

What is the best description of `DeltaABC`?

  1. isosceles
  2. equilateral 
  3. scalene
  4. right-angled
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`D`

Show Worked Solution

`AB != AC != BC`

`angleBCA = 90^@`

`DeltaABC\ text(is both right-angled and scalene)`

`:.\ text(Right-angled is the BEST description)`

`=>D`