A rectangle of length 4 cm and breadth 9 cm has how many lines of symmetry?
Answer
2
The correct answer is 2 — Therefore the rectangle has a total of 2 lines of symmetry.
Step-by-step solution
- Only a horizontal line through the midpoints of the longer sides and a vertical line through the midpoints of the shorter sides keep the rectangle unchanged.
- The two lines are the only axes of symmetry for a rectangle.
- Therefore the rectangle has a total of 2 lines of symmetry.
Common mistake: counting the diagonals as symmetry lines
Concept tested: symmetry of rectangles
Published · How this solution was prepared and checked
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