Quadrilaterals
CBSE · Class 8 · Mathematics
Practice quiz for Quadrilaterals — CBSE Class 8 Mathematics. MCQs and questions with answers to test your preparation.
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Quick Quiz: Quadrilaterals
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In a rectangle ABCD, if one angle is 90°, what is the sum of all four angles?
In parallelogram PQRS, if angle P = 70°, what is the measure of angle Q?
A rhombus has all sides equal. If one side is 8 cm, what is the perimeter?
In rectangle ABCD, diagonal AC = 10 cm. What is the length of diagonal BD?
Sample Questions
Which of the following are properties of a square?
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All sides are equal, All angles are 90°, Diagonals are equal, Opposite sides are parallel, Diagonals bisect each other at 90°
A square has all the properties listed: (1) All four sides are equal in length, (2) All four angles are 90°, (3) Both diagonals have equal length, (4) Opposite sides are parallel to each other, (5) Diagonals bisect each other perpendicularly.
The statement 'In a parallelogram, opposite angles are equal' is:
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True
This statement is TRUE. In any parallelogram, opposite angles are always equal. This can be proven using the properties of parallel lines and transversals. If ABCD is a parallelogram, then angle A = angle C and angle B = angle D.
In a square with side length 6 cm, what is the area?
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36 cm²
Area of a square = side × side = side². With side length = 6 cm, Area = 6² = 6 × 6 = 36 cm². Step-by-step: Area of square = s² → Area = 6² = 36 cm².
Which quadrilaterals have diagonals that bisect each other?
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Rectangle, Square, Parallelogram, Rhombus
Rectangle, Square, Parallelogram, and Rhombus all have diagonals that bisect each other (meet at their midpoints). A trapezium generally does not have this property unless it's an isosceles trapezium, and even then, the diagonals are only equal, not necessarily bisecting.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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