O-LevelMathematicsGeometry4024/11 · May/June 2015 · Q22 Marks
In the diagram, six small triangles are shaded. Shade one more small triangle, so that the diagram will then have one line of symmetry.
- (a)In the diagram, six small triangles are shaded. Shade one more small triangle, so that the diagram will then have one line of symmetry.[1]
- (b)The diagram below has rotational symmetry. Mark the centre of rotational symmetry with a dot, and write down the order of rotational symmetry.[1]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Mark scheme
Marking points from the official mark scheme (May/June 2015). The mark or mark type is shown in brackets.
- [1] X shaded
- [1] Correct centre marked and order = 3
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