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Mathematics · Topic 35

Quadrilaterals: properties and diagonals

Sub-topic 1 2024 · National Preliminary Free

Side of a rhombus with diagonals $20$ cm and $30$ cm

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Sub-topic 2 2025 · National One-Eighth Premium

If the diagonals bisect the vertex angles, is the quadrilateral a parallelogram, square or rectangle? (true/false)

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Sub-topic 3 2025 · National One-Eighth Premium

Area of a rhombus with side $13$ cm and diagonal $10$ cm

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Sub-topic 4 2023 · National Preliminary Premium

Angles $x+45^\circ$, $2x-15^\circ$, $2x-20^\circ$, $x-10^\circ$ of a quadrilateral

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Sub-topic 5 2023 · National Preliminary Premium

What bisecting diagonals guarantee about a quadrilateral (true/false)

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Sub-topic 6 2012 · National Preliminary Premium

An equilateral quadrilateral need not be equiangular (true/false)

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Sub-topic 7 2012 · National Preliminary Premium

A rhombus is a parallelogram (true/false)

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Sub-topic 8 2013 · National Preliminary Premium

The interior angle of a regular quadrilateral is $90^\circ$, not a straight angle (true/false)

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Sub-topic 9 2013 · National Preliminary Premium

The diagonals of a rectangle bisect each other but not perpendicularly (true/false)

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Sub-topic 10 2013 · National Preliminary Premium

Which diagonal of a kite bisects its end angles (true/false)

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Sub-topic 11 2013 · National Preliminary Premium

Which diagonal of a kite bisects its end angles (true/false)

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Sub-topic 12 2013 · National Preliminary Premium

Riddles: the kite

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Sub-topic 13 2013 · National Preliminary Premium

Area of a square of perimeter $48$ cm

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Sub-topic 14 2013 · National Preliminary Premium

Perimeter of a square of area $8$ cm$^2$

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Sub-topic 15 2013 · National Preliminary Premium

Riddles: the quadrilateral and other polygons

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Sub-topic 16 2013 · National Semifinal Premium

Riddles: the quadrilateral family

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Sub-topic 17 2014 · National Quarterfinal Premium

A general parallelogram's diagonals do not bisect its angles (true/false)

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Sub-topic 18 2014 · National Quarterfinal Premium

A kite's diagonals are perpendicular (true/false)

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Sub-topic 19 2014 · National Quarterfinal Premium

A rhombus's diagonals bisect its angles (true/false)

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Sub-topic 20 2016 · National One-Eighth Premium

A parallelogram with a right angle need not be a square (true/false)

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Sub-topic 21 2016 · National One-Eighth Premium

A parallelogram with two adjacent equal sides is a rhombus (true/false)

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Sub-topic 22 2016 · National One-Eighth Premium

A square is a rectangle (true/false)

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Sub-topic 23 2016 · National Preliminary Premium

A trapezium is not a parallelogram (true/false)

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Sub-topic 24 2018 · National Preliminary Premium

Diagonals of a parallelogram bisect each other (true/false)

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Sub-topic 25 2018 · National Preliminary Premium

Diagonals of a rhombus are perpendicular and bisect the vertex angles (true/false)

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Sub-topic 26 2020 · National One-Eighth Premium

Diagonals of a kite are perpendicular but do not bisect each other (true/false)

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Sub-topic 27 2021 · National Semifinal Premium

Other two angles of a cyclic quadrilateral with angles $53^\circ$ and $115^\circ$

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Sub-topic 28 2022 · National Preliminary Premium

Angles in radians of a quadrilateral in the ratio $3:4:5:6$

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Sub-topic 29 2022 · National Preliminary Premium

Angles in radians of a quadrilateral in the ratio $1:2:3:4$

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Sub-topic 30 2022 · National Preliminary Premium

Angles in radians of a quadrilateral in the ratio $3:5:7:9$

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Sub-topic 31 2022 · National Preliminary Premium

Diagonals bisecting the vertex angles: is it a kite? (true/false)

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Sub-topic 32 2022 · National Preliminary Premium

Diagonals bisecting the vertex angles: is it a square? (true/false)

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Sub-topic 33 2022 · National Preliminary Premium

Diagonals bisecting the vertex angles: is it a rhombus? (true/false)

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Sub-topic 34 2023 · National Preliminary Premium

Riddles: the rhombus and square, with diagonals that bisect each other perpendicularly

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