Question

A coloured sheet is folded into an octahedron as shown on the left. Which of the options show(s) the CORRECT rotated views of the octahedron?

• A. Fig A
• B. Fig B
• C. Fig C
• D. Fig D

Hint:

For any regular octahedron net in a straight strip of 8 triangles, opposite faces are always separated by exactly 3 intermediate faces (i.e., \(F_i\) and \(F_{i+4}\)).
Since opposite faces cannot share a vertex, you can instantly eliminate any options showing opposite color pairs meeting.

Answer 1

The Correct Option is B

Step 1: Fold the net.
Assemble the 8 triangular faces into the octahedron, keeping the colour order Green-Yellow-Green-Orange-Blue-Orange-Blue-Yellow.
Step 2: Check rotations.
Match adjacency of colours under rotation; only one option keeps the correct neighbours.
\[ \boxed{\text{Option 2 (Fig B)}} \]