Step 1: Understanding rectangles
A rectangle is a quadrilateral with:
- Four right angles (\(90^\circ\))
- Opposite sides equal and parallel
Step 2: Analyze options
- (A) Visual shape is rectangular — likely has right angles and equal opposite sides.
- (B) A circle has no straight sides — not rectangular.
- (C) Visual not matching rectangle — possibly square or lines.
- (D) A triangle has only 3 sides — not rectangular.
Hence, option (A) is the most accurate.
\[
\boxed{\text{Correct Answer: (A)}}
\]