Explanation

The lines in Option B continue the geometric and symmetrical pattern from the rest of the circle.

- The curves and angles match the top-left and top-right parts, maintaining the internal structure.

Explanation

Explanation

The problem asks to identify the figure that does not belong to the group.

Figures B, C, and D are all diagrams of electrical connectors or components.

Figure A is a diagram of a face.

Therefore, Figure A is the one that does not belong to the group.

Explanation

Step 1: Smallest triangles

If we look at the smallest possible divisions:

• Top section: 4 small triangles

• Bottom left: 2 small triangles

• Bottom right: 2 small triangles
  Total smallest ones = 8

Step 2: Medium triangles (made of 2 or 3 small ones)

• Top part: 2 medium triangles (one on left, one on right)

• Bottom part: 2 medium triangles (left, right)
  Total medium = 4

Step 3: Larger triangles inside main shape

• One triangle formed by the top half (entire top section)

• One triangle formed by bottom left section

• One triangle formed by bottom right section
  Total larger ones = 3

Step 4: The whole triangle

• The largest triangle is the whole outline = 1

Grand total = 8 (small) + 4 (medium) + 3 (large) + 1 (whole) = 16 triangles

Explanation

When the left square is split down the middle, the missing right half must supply the mirror-image pieces so the two large triangles and the small corner shapes join at the center.

Option C is the only choice whose pattern on the dividing edge completes those triangles and the zig-zag correctly.