Shape and Space 1
3 marks · HardA kite is a quadrilateral with two distinct pairs of adjacent sides equal. List all the lines of symmetry and describe the order of rotational symmetry for a typical kite.
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One line of symmetry; order of rotational symmetry is 1
Must show: Identifies vertical symmetry through the unequal sides, States order of rotational symmetry is 1 (no rotation < 360° maps to itself)
Also accept: One (longitudinal) line of symmetry; Rotational symmetry of order 1
Common mistakes: Saying 2 lines of symmetry; Claiming rotational symmetry order 2
Show mark scheme and worked solution
Marking points
B1 · 1 mark · Correctly states one line of symmetry
B2 · 1 mark · Describes line of symmetry runs through the axis between unequal sides
B3 · 1 mark · States rotational symmetry order is 1
Worked solution
A kite has one line of symmetry. This line divides the kite into two mirror images, passing through the axis with unequal sides.
A kite only maps onto itself after a full 360° rotation, so its order of rotational symmetry is 1.