Which of the following shapes has exactly 1 line of symmetry?
FREE QUIZ · PRIMARY 4 MATHEMATICS
Symmetry
Five MCQs on Symmetry. Pick an answer, see the specific misconception. The diagnosis comes after the score.
A symmetric figure has TWO perpendicular lines of symmetry (horizontal and vertical), like a rectangle or rhombus. ONE quarter of the figure has an area of 36 cm². Find the area of the WHOLE symmetric figure.
Wei Lin's art teacher shows her four geometric figures and asks her to identify which one is NOT a line-symmetric figure.
Figure A: A regular hexagon (all 6 sides equal, all 6 interior angles equal)
Figure B: An isosceles triangle (two sides equal, one line of symmetry)
Figure C: A parallelogram (opposite sides parallel and equal, but NO right angles)
Figure D: A rectangle (all angles 90°, opposite sides equal)
Which figure is NOT line-symmetric?
A figure is folded along a vertical line of symmetry. The half-figure (the folded piece) has a perimeter of 20 cm. The fold line itself measures 6 cm and is part of the 20 cm perimeter.
What is the perimeter of the complete unfolded figure?
Which letter has a vertical line of symmetry?