Class 8 Mathematics Chapter 4: Quadrilaterals — practice questions with answers
Free practice for Class 8 Mathematics, Chapter 4: Quadrilaterals. Try the solved questions below, then take a free test with instant marking and explanations.
48 questions16 easy, 22 medium, 10 hardNCERT · CBSE · State boards
Sample questions with solutions
Q1. The word ‘quadrilateral’ comes from Latin words meaning ______.
- four sides
- four angles
- square shape
- many corners
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Answer: A. four sides
Why: quadri = four, latus = sides. [p.82]
Why: quadri = four, latus = sides. [p.82]
Q2. Which of these is a correct definition of a rectangle?
- All angles are 90° and opposite sides are equal
- All sides are equal
- Only one pair of parallel sides
- Diagonals are perpendicular
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Answer: A. All angles are 90° and opposite sides are equal
Why: This precisely states the conditions. [p.83]
Why: This precisely states the conditions. [p.83]
Q3. One diagonal of a rectangle is 8 cm. What is the length of the other diagonal (cm)?
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Answer: 8 (± 0)
Why: Diagonals of a rectangle are equal. [p.84]
Why: Diagonals of a rectangle are equal. [p.84]
Q4. When the diagonals of a quadrilateral cross at their midpoints, we say they ______ each other.
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Answer: bisect
Why: Bisect = cut into two equal parts. [p.85]
Why: Bisect = cut into two equal parts. [p.85]
Q5. Which statement is true?
- Every square is a rectangle, but not every rectangle is a square
- Every rectangle is a square
- No square is a rectangle
- Squares and rectangles are unrelated
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Answer: A. Every square is a rectangle, but not every rectangle is a square
Why: A square is a special rectangle with equal sides. [p.91]
Why: A square is a special rectangle with equal sides. [p.91]
Q6. What is the sum of all angles of any quadrilateral (degrees)?
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Answer: 360 (± 0)
Why: A diagonal splits it into two triangles: 180 + 180. [p.95]
Why: A diagonal splits it into two triangles: 180 + 180. [p.95]
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Frequently asked questions
How many practice questions are there for Class 8 Mathematics Chapter 4: Quadrilaterals?
48 questions (16 easy, 22 medium, 10 hard). A few are solved on this page; the free test shows the answer and explanation for every question after you submit.
Is this chapter from the NCERT book?
Yes — it follows the NCERT Class 8 Mathematics syllabus, used by CBSE and many state boards.