Practice Summary (8.3) - Quadrilaterals - CBSE 9 Mathematics
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Practice Questions

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Question 1 Easy

What is a property of the diagonals in a parallelogram?

💡 Hint: Think about triangles formed by the diagonal.

Question 2 Easy

Explain why opposite angles in a parallelogram are equal.

💡 Hint: Consider pairs of alternate angles.

1 more question available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What happens when a diagonal is drawn in a parallelogram?

It forms a square.
It divides it into two congruent triangles.
It changes the shape.

💡 Hint: Recall the basic definition of a parallelogram.

Question 2

True or False: The diagonals of a rectangle are always equal.

True
False

💡 Hint: Think about the properties of rectangles.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given a parallelogram ABCD with AB = 5cm and BC = 7cm, show the area of triangles formed by the diagonal.

💡 Hint: Calculate the full area first, then divide.

Challenge 2 Hard

Prove that if the diagonals of quadrilateral ABCD bisect each other, it is a parallelogram.

💡 Hint: Analyze pairs of triangles for congruency.

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