Sub-topic 1
2025 · National One-Eighth
Free
Riddles: identifying a solid from its faces, edges and vertices
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Sub-topic 2
2023 · National Preliminary
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Riddles: the tetrahedron, cone, cylinder, sphere and prism
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Sub-topic 3
2003 · National Semifinal
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Curved surface area of a right cylinder is $2\pi rh$ (true/false)
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Sub-topic 4
2003 · National Semifinal
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Volume of a pyramid is $\dfrac{1}{3}bh$ (true/false)
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Sub-topic 5
2012 · National Preliminary
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Riddles: the polyhedron, face, edge, vertex, prism and pyramid
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Sub-topic 6
2013 · National Preliminary
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Total surface area of a cubic box of side $3$ cm
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Sub-topic 7
2013 · National Preliminary
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Base side of a square pyramid of height $12$ cm and volume $64$ cm$^3$
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Sub-topic 8
2013 · National Preliminary
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Volume of a cone of radius $7$ cm and height $18$ cm, using $\pi=\dfrac{22}{7}$
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Sub-topic 9
2013 · National Preliminary
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Volume of a sphere when the radius is tripled ($27$ times)
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Sub-topic 10
2013 · National Preliminary
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Map scale when $15$ km is represented by $3$ cm
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Sub-topic 11
2013 · National Preliminary
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Distance for $3$ cm when $200$ km is represented by $4$ cm
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Sub-topic 12
2013 · National Preliminary
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Surface area of a sphere $4\pi r^2$ (true/false)
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Sub-topic 13
2013 · National Preliminary
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Volume of a pyramid uses $\dfrac{1}{3}$, not $\dfrac{1}{2}$, of base area times height (true/false)
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Sub-topic 14
2013 · National Quarterfinal
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Riddles: the polyhedron, prism, pyramid, cube, cuboid and tetrahedron
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Sub-topic 15
2016 · National One-Eighth
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Map scale when $15$ km is represented by $3$ cm on the map
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Sub-topic 16
2016 · National One-Eighth
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A square pyramid has four triangular faces and one square base (true/false)
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Sub-topic 17
2016 · National One-Eighth
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A square pyramid has five vertices (true/false)
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Sub-topic 18
2016 · National One-Eighth
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A square pyramid has eight edges (true/false)
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Sub-topic 19
2017 · National Semifinal
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Riddles: the tetrahedron, pyramids, prisms, cube and octahedron
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Sub-topic 20
2022 · National Preliminary
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Riddles: vertex, apex, base and edge
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Sub-topic 21
2022 · National Preliminary
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Volume of a tetrahedron is $\dfrac{1}{3}a_{\text{base}}h$ (true/false)
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Sub-topic 22
2022 · National Preliminary
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Volume of a cylinder is $a_{\text{base}}h$ (true/false)
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Sub-topic 23
2022 · National Preliminary
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Volume of a cone is $\dfrac{1}{3}a_{\text{base}}h$ (true/false)
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