Class 8 Mathematics — Chapter 4: Quadrilaterals
72 practice questions · 24 Easy · 24 Medium · 24 Hard
Practise the most important Class 8 Mathematics questions from Chapter 4, "Quadrilaterals" — 72 NCERT-aligned multiple-choice questions with answers and explanations. The set is split into 24 Easy, 24 Medium and 24 Hard, so you can warm up on the fundamentals and then push into the exam-level problems that separate top scorers in CBSE Board exams.
"Quadrilaterals" is one of the chapters where problem-solving speed, formula recall and step-by-step reasoning really pays off. Each MCQ on this chapter is timed and uses exam-grade marking (+4 correct, −1 wrong, 0 skipped), training the same negative-marking accuracy-under-pressure that real papers demand. Every question carries a short explanation, so a wrong answer becomes a quick lesson rather than a dead end — the fastest way to close gaps before a test.
Use this chapter as targeted revision: attempt the Easy set first to confirm your basics on Quadrilaterals, then move to Medium and Hard to test application and problem-solving. Your accuracy, streaks and XP save automatically, and the chapter feeds into your overall Class 8 Mathematics mastery score. A sample question is shown below; sign in free to see its answer and practise all 72.
Key concepts: Quadrilaterals (Class 8 Mathematics)
This chapter defines the family of four-sided figures and the properties that tell them apart. The key result is that the four angles of any quadrilateral add up to 360°, proved by cutting it into two triangles with a diagonal. You define rectangle, square, parallelogram, rhombus, kite and trapezium, and — following the book's approach — learn to recognise each one from its diagonals: whether they are equal, whether they bisect each other, and whether they meet at right angles.
- Quadrilateral
- A closed figure with four sides, four angles and two diagonals. Its shape is fixed by the lengths of its sides and the sizes of its angles.
- Angle sum property
- The four angles of any quadrilateral always add up to 360°. A diagonal splits it into two triangles, and 2 × 180° = 360°.
- Rectangle
- A quadrilateral with four right angles and opposite sides equal. Its diagonals are equal in length and bisect each other.
- Square
- A rectangle whose sides are all equal — so it is both a rectangle and a rhombus. Its diagonals are equal and bisect each other at right angles.
Try a sample question
One free sample from this chapter — sign in to check your answer and practise the rest.
In a parallelogram, one angle is 70°. The angle opposite to it is:
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See the answer and solution to this question, then practise all 72 questions (24 Easy · 24 Medium · 24 Hard) with timed scoring and instant feedback, plus the complete key-concept notes, formulas & exam tips. Sign in with Google — no card needed.
Start this chapter free →Quadrilaterals — FAQs
What are the key concepts in Class 8 Mathematics Quadrilaterals?+
This chapter defines the family of four-sided figures and the properties that tell them apart. The key result is that the four angles of any quadrilateral add up to 360°, proved by cutting it into two triangles with a diagonal. You define rectangle, square, parallelogram, rhombus, kite and trapezium, and — following the book's approach — learn to recognise each one from its diagonals: whether they are equal, whether they bisect each other, and whether they meet at right angles. Key ideas include Quadrilateral, Angle sum property, Rectangle, Square.
What does Class 8 Mathematics Chapter 4 (Quadrilaterals) cover on XamBaaz?+
It covers 72 NCERT-aligned MCQs on "Quadrilaterals" — 24 Easy, 24 Medium and 24 Hard — each with a timed quiz and an instant explanation, suitable for CBSE Board exams.
Are these "Quadrilaterals" questions free to practise?+
Yes — sign in with Google to practise "Quadrilaterals" free. Full unlimited access is ₹999/year (limited-time launch price), with no per-chapter charges.
How should I revise "Quadrilaterals" for the exam?+
Start with the Easy quiz to confirm your fundamentals, then attempt Medium and Hard for application-level practice. Review each explanation, retry the questions you miss, and track your accuracy on this chapter until it is consistently high.
Are these "Quadrilaterals" MCQs available with answers?+
Yes. This page shows one sample question so you can see the format; sign in free with Google to reveal the correct option and a step-by-step "Why" explanation for it, then practise all 72 questions with instant scoring.
Is there negative marking in the "Quadrilaterals" quizzes?+
Yes — the timed quizzes use exam-grade marking: +4 for a correct answer, −1 for a wrong one and 0 for a skipped question, so you practise the same negative-marking discipline as CBSE Board exams.
Are these important questions for Quadrilaterals?+
The set is curated to the NCERT syllabus and weighted toward the question patterns that actually appear in CBSE Board exams, across Easy, Medium and Hard — so it doubles as an "important questions" revision list for "Quadrilaterals".